 Okay. So the question is on the screen. Okay. Okay. So I can see 16 people have got it right. I can see your chat box. Okay. From next question, you can attempt. Okay. So let me discuss this question first of all. And so the question is 72. So in this question, if you look at this question, you have to add all the numbers. 72 plus 9 plus 28 plus 60. This gives me 169. And when you take square root of 169, it gives me the number over here. So this is equal to 13. Now, again, here, when you add it, 60 plus 21 is equal to 81. And this gives me root 81 is equal to nine. So what will we do in this question? So we have 48 plus 41. That is 89. 89 plus 23 is 112. 112 plus 32 is equal to 144. And when I take square root of 144, that gives me 12. So answer here is 12. The first answer is correct here. Okay. So now let me go to the question again and let me show you the leaderboard. I want you all to put your own names. I don't know. I don't want these names here. I please change your names. Put your actual name. Okay. No issues. You do it now. You do it now. No issues. I'm not showing you the second question. Rohit was the first question. Yes. Yeah. So all of you just log out and just close the browser and type the mentee, you know, this thing once again and type the code. Do as suggested, please. Please log out. Everyone logs out and reload. Reload with your name. We'll wait for two minutes. Come on, quick. All done. Take your time. Just quickly do it. Yes. Anyone wants more time? All done. Anyone wants, he will only write or she will write. Yeah. Yeah, you're done. Anyone wants one moment. Okay. Take your time. Quick. And while we are discussing Mac questions, I don't want anyone to discuss any irrelevant this thing here in the chat box. Please focus on the questions. We will today observe and evaluate who will how. So the data is going to be analyzed. If you are facing any technical glitch, just reload. Okay. If you're totally not able to sort it out, just watch the solutions. Okay. So no irrelevant discussions about whether and something going wrong and this and that. This is because of this reason you all are, you know, not scoring well. So hence my request to everyone do not distract the quiz. There are a few serious quiz takers. So let's help them and help yourself as well. Okay. Are you ready? Yes. Are you done? Yes, sir. Yes. Go ahead. Second question. Analyze it pretty quickly. There are 100 Mac questions in paper 180c. 100 and you'll be given only how much? Two hours to find. So you can calculate how much time for one question you are getting. And today I have given more question to you, more time to you because this is the first session and I don't want to rush you guys. So that's why more time has been given today. And the cutoff last year was around what? Cutoff was 139 marks last year. No, last year I think it was little more than 150. You are talking about last year. No, no, no, sir. This 2019 it was 139, 2018 it was 153. Oh, yes. Correct. Okay. Yes. So hence you have to score more than 70% in each of the papers. Yes. To be safe. Okay. So I've got how many responses? I've got nearly 66 responses. Now let me first discuss this question with you. And then I go to solve this is question number two. Now in this question, the idea behind this question is that number on the opposite sides have, I'm sorry, number on the opposite sides of the central box. So you look at the central box here. So wherever you look, I mean, if you take this as reference box, this central box, and you look on the opposite side, so you look on this side and the side you get one. You go here. So opposite side is this. So minus one, minus one, you go on this side. This is minus two and minus two. So what would be the number here? The number here should be exactly opposite to I mean the opposite numbers are same. So this one should be repeated here. And the answer here is one. So in this question, the reference point was central box and opposite to central box, I have similarity. So that's why looking at that similarity, I'm finding out this value one. Now let me show you the third question. Here's the leaderboard. Great. The third question is on the screen. It's a simple question if you look at it. So I expect a slightly better result this time. Looking at the result, how many of you just looked at the first box which was on the left-hand corner and gave me the answer? How many of you? Because the first box was, if you look at the first box, the first box was addition of three numbers. And if you could have added those three numbers, I think you could have got the answer. That was something like that. Yes, I'm saying that some was not the answer. So that is why this kind of question is given where you don't have to look at one box. If you analyze all the boxes, yes. So on the same thing, summing was not the answer here. It was given very purposefully because most of the students will look at one box. They'll find it that if you do the sum, you will get the answer. It was 7 plus 3 plus 4. It gives you 14 and 14 was written over there. And that's why that question was given because if you look at that particular question, if you look at that particular question, so if you add 7 plus 3 plus 10 here, so this question was given for that. If you add this and if you add this, so this gives me 14 and it is exactly wrong logic. And that's why. So if you look at this, go to the second box. You add 12 plus 2 plus 4. Is it 16? No, it is 18. So it means that summation is not the right logic. Then what is the right logic? Now, if you look at this particular question, summation as well as subtraction doesn't matter here. Now, the third thing which I do in this kind of question is to find out what I have is a multiplication. If I multiply all of this, so this gives me 7 into 3 is 21 into 484. If I multiply this, 18 into 6 is 108. Then I have 12 into 8 is 96. And then I have 20 into 9 is 180. Now, if you look at this particular number very carefully and try to analyze it, 84 divided by 6 is 14, 108 divided by 6 is 18, 96 divided by sorry, 84 divided by 6 is 14, 108 divided by 6 is 18, 96 divided by 6 is 16. So it's division by 6. It was visible here only 9 into 2 into 6. And then I have only 9 into 2. So it means division by 6 is there. So this answer would be 180 divided by 6 is 30. So answer would be equal to 30. Hence, second option would be correct. So that's the answer. Okay. Now, let me go to next question with the leader box coming out to be. Good. Okay. So all this question, this question is visible actually. If you look at the numbers pretty carefully, you don't need to touch your pen for this question. So this question I have got a very good response. This question was actually easy. Now, before I discuss this question, how many of you identified that? How many of you did some multiplication, some division in this question? I just want to know about the process. No, I know what's the right answer. I just want to know about the process. Those who have got it wrong, I'm not saying those who have got it right. Obviously, they have done some multiplication, some division. Those who have got it wrong, nearly 29 people. How many of you did some division, some multiplication or something like that? So if you have done that, then it's primarily this. If you look at this particular question, it's seven into eight is equal to 56 and five into four is equal to 20. And if you do 56 minus 20, you get 36. So it means that you have to multiply two numbers in the top and then you have to multiply two numbers in the bottom. And then you have to find the subtraction of both of them. Here also when I multiply nine into three, I get 27 and then I multiply five into two and that gives me 10 and 27 minus 10 gives me 17. Now what's the number out here? The number out here is eight into five that gives me 40 and the number out here is six into three. So that gives me 18 and 40 minus 18 is something like 22. So answer here is second option. Correct. So when you have 10, actually you are right. So when you have a series, guys, always start with summation, subtraction, multiplication, division. These are the two things. And then you shift to finding out square, square root, cube and cube root. This is the hierarchy. Some negative multiplication, division, square, square root, cube, cube root. And then you move ahead with that. So these eight processes need to be done. If you are not getting most of the questions, would be in this particular range, in this particular hierarchy of eight things. So you can find out answer quickly if you know this hierarchy of eight particular mathematical operations. So now, great. Next question is on your screen. Please solve it. So very simple question. Very, very simple. Okay. Let me check. I want this question like full answer. I mean, all of you should get it correct. Still I am getting how many? This was the simplest question possible, guys. If you look at the question carefully, if you look at the question carefully, how many sides are here? This is a heptagon. It means that seven sides. So seven cube is equal to how much 343. How many sides Pentagon five sides five cube is equal to how much 125 triangle three sides three cube some quadrilateral maybe a parallelogram four sides four cube 64 how many sides here hexagon six sides so six cube is equal to how much 216. So if you haven't solved this question, it means that I want to discuss this question because I got 13 answers incorrect. Now those who have got it incorrect. First of all, one primary problem that I can see is because you are not sure about the numbers. As soon as I look at the numbers, I'm writing your cube still 10 for those who still don't remember it. Please have this. As soon as you look at these numbers, you should identify that this is related to cubes. So as soon as I saw 343, 125, 27 and 64, it should be confirmed that the answer has to be one of the cubes. Now, even if you don't know this, if you look at the options, the question was as simple as if you look at the options because four of them are cube. The answer has to be a cube and out of 216, 316, 117 and 215. There is only one answer, which is a cube, which is 216. So obvious answer here was 216. So even if you don't realize that this is a heptagon hexagon and Pentagon and different identical figures with different sides, you could have looked at the option. Please have a habit of looking at the option before you give the answer. Sometimes looking at the options make you realize that the answer you are ticking is wrong. Those who have got it wrong, please write it down quickly. Please, please write it down. Once you write it down, write done. Return. Okay, so I'm going to next question because nobody is saying anything. Next question is very good. Okay, solve this very simple question. Okay, the answer is, okay, B is the right answer. Good. So this question was to realize, okay, before I solve this question, let me discuss it for those who have got it wrong nearly 28 people. So those who have got it wrong, this question was to realize that how come a four digit number is giving me a two digit number? A four digit number will give me a two digit number only in two, three cases. And what are those two, three cases? Those two, three cases are nothing but if you look at this question, those two, three cases are nothing but if you find out square root, so if you take square root of four, three, two, two, I know this number is more than 3600. So this will be greater than 60. Why I am doing this? Because I want to check whether it is square root of 48 or not. 50 square is 2500. Definitely, four, three, two, two would not be giving a, I mean, square root of this number will not be 48. It means that finding out square root is not efficient here. Now, let's discuss about cube root. We don't have to go beyond cube root. Nobody will give you beyond cube root. Beyond cube root is what? So I have 12, 13, if you look at 12 cube, 12 cube is 2744. And this number will not give cube also. So it means, sorry, cube root also. So it means that this number is neither cube root nor square root. So then how do you get this number? Then there is only one possibility which is multiplication or division. So multiply these numbers because division also is not possible. So if I multiply these numbers four into three into two into two, that gives me 48, then four into one into seven into two, that gives me 56. And if I multiply seven into six into one into five, what number this will give me? This will give me 210. So answer is what? 210. So if you get from four digit number, the obvious logic is from four digit number, if you get a two digit number or a three digit number for that matter, it can only be square root, cube root or multiplication or division. In this case, division also was not possible. So the only thing possible was multiplication. So if you remember my hierarchy, the eight things, summation, subtraction, multiplication, division, square, square root, cube, cube root. This is an eight process hierarchy that we see in missing numbers or missing characters. So if you remember this, then probably you'll be able to solve it much quickly and you'll get accurate result. Okay. Now let me go to next question. How 14 cube is 274, 12 cube is 1728. Okay. Great. So why, why this, this question was pretty easy. Why only 10 people have got it right? This is, this is perplexing for me. I mean, this question was not that difficult, I think. And you could have done it. Now this question, if you have this seven plus nine is equal to 16 and plus four is equal to six, 16 minus six is equal to 10. Similarly, you do here nine plus three is equal to 12 and four plus six is equal to 10. So 12 minus 10 is equal to two. Answer one is correct. How do you, if you, if you do seven into four. Okay. Okay. I understood this logic. I'm coming to that seven into four minus nine into two also gives you 10. So if you do nine into six minus three into four, this gives you 54 minus 12 that is equal to 44. Now is there any option called 44? So if option is not there, then it only means that you have to find out some other logic. So that will probably, that would have probably given you who did that multiplication, R N single. So if, if, because 42 was not an answer. So even if you have right logic, if option is not there, there is no point discussing it. It means that if, if, if you, if you are getting a right logic, but option is not there, you have to search for a different logic all together. So while putting values, let me tell you about actual NTSC examination. While putting values, you will find two to three questions every year where it will be written two questions, where it will be written more than one, one answer correct. Why that happens? Because when as an examiner you are putting the values, you forget that this is also the option. You just identify a logic, you put few numbers and those numbers are true for different logic also. So you have to look at various options. If you look at the option 44, 40, 42 is not there. So now 54 minus 12, 42 is not there. 42 is not there. It means that different logic has to be applied. So if, if you got 42 and if option was not there, better thing was that, okay, in NTSC anyway, no negative marking is there. So it's, it can be understood that you can take any answer. But if option is not matching, please search for any other logic. Solve this question. This question is difficult. Great, Anike. Okay, great. A lot of people, I mean, it's better than my expectation. Yes, very good. Very good, very good. So if you look at this question, this question was something like this, 131, 3 and then you have. So what happens here is, you have to think that if you look at these numbers, 31 is a multiple of two, then 127 is somewhere near multiple of two. Seven is somewhere near multiple of two. It means that and if you look at these numbers carefully, so 15 is near multiple of two. And it is one less than multiple of two. Now this number, if, if, if you find it here, there is only one number, which is one less than multiple of two, which is, which is 63, one less than multiple of two. So alternate numbers are one less than multiple of two. So 31, 127, 15. If you look at this, this is two to the power five minus one. This is two to the power seven minus one. This is two to the power four minus one. I have to search for a number. Alternate numbers, if I look at here. So if I search for a number, this number has to be 63 because this comes out to be two to the power six minus one. So that gives me 63. So this was the logic here. So that's how you can, you can also say that try to understand that all the numbers are odd numbers. And somewhere near to the multiple of two, there is only one odd number 63 that all logic will also work out here. So this is how this question was to be done. I'm happy that more than half the number of people have got it right. Very good. One second. Just give me a moment. Solve this question. So very, very good question. In line, whatever number of questions we can solve. Let me check how many of you find it correct. Very less number of people. It was a good question actually. Okay. So let me discuss this question. And to discuss this question, what I, there is this logic was, this logic was difficult to find out. I understand that. If you look at each side, there are four numbers on each side. This is a Pentagon with four numbers on each side. Now this gives me 17 plus four plus 18 plus 11. How much it gives me? It gives me 21 plus 18, 39 plus 11, 50. If you look at these numbers, 23 plus 16, 39 plus 11, 50. Then I have 18 plus 6 plus 23 plus 3, which gives me 50. Give me a moment, which gives me 50. And so this is 50. This is 50, 31 plus 2, 33 plus 17, 50. And this is 18 plus 10, 28 plus 12, 14. So this gives me 40 plus 10 is equal to 50. So it means that on each side, addition of all the numbers is equal to 50. And that's why the answer is equal to 10 out here. So question was a bit difficult, but 10 people got it right. That's fine. Okay. Next question. What do you mean by that, Siji, but I can't answer. This question is very easy, very, very easy. In this question also, I've got how many 17 people getting it wrong? Okay, I'll do a two-hour class on this. Then only I think it would be possible to get these things right. Okay. Again, I'll take a class. I've done a few questions like this. 17 minus 15 is two and five minus three is two. 18 minus 12 is six. This side is not matching, but still I'll go because this side is matching both the places. So I will have answers. And then there is an option also. So 35 minus 30 is equal to five. So answer here is equal to the second correct answer. I mean second option. So five. So 18 minus 12, 17 minus 15. The vertical answers, vertical numbers are not matching, but the horizontal numbers are matching on left and right. So because there is a matching answer, which matches with my logic, so I am going with this answer, which is option two. So this question, only you have to have to compare two numbers on the left and right, and the vertical numbers have to be ignored. Okay, let me move to another number. Another question. Good quality question. Good question. Bit of logic and this question can be done. Okay, let me check. How many of you have done it right? Okay, great. So correct answer is option two, which is 20. And this particular question also was not that difficult. If you look at these numbers on the peripherals, they all these numbers are in multiple of one less than multiple of five. So four is five into one minus one, five into one minus one is four, five into two minus one is nine, five into three minus one is equal to 14, and five into four minus one is equal to 19. Also here, if you look at here, a nine into one minus one is eight, then nine into two minus one is 17, nine into three minus one is 26, and nine into four minus one is equal to 35. So I have seven into one minus one is six, then I have seven into two minus one is equal to 13. And I will have next number seven into three minus one, that will give me 20. This I did to explain you. If I could have attempted this question, I could have looked at the number at peripherals, and I could have found that one less than the multiples. And which multiple? First four multiples, one, two, three, four. So here, the third multiple is missing because it is the order is anticlockwise, one, sorry, clockwise, one, two, three, four. So I go in the clockwise direction, one, two, three, and three is seven into three minus one, 20. So that could have been my answer. So that's how you will solve it. Okay. So that's an option, easy one. Sorry? So that's another easier method. What is that? So the number to the right minus the number on top is the number inside. Obviously, try to understand because they are multiple, multiple, since difference between the multiples, two multiples or two consecutive multiples would be same. So difference here would be five, difference here would be five, difference here would be five, and difference here, no, sorry, I mean, this is not alternate. So I have to look at, sorry, consecutive only. So if you look at consecutive multiples, the difference would be five because it is a multiple of five. So the same thing I'm saying in some other way. Sir, also the top number divided, mine like subtracted by the bottom number divided by two. It's the same thing, actually. It's the result of the same thing because they are multiple of same numbers, multiple of these numbers. So and there is certain relationship between them. So that has to be true because top and bottom, bottom numbers are third multiple. So because they are third multiple, so you will have 16 into what are you saying? If this is 14 divided by four. So you are saying divide it and no, no, sir, 14 minus four divided by two. Okay. Similarly, I mean, same thing, 20 minus six divided by seven divided by two. Why this is coming? This is coming because you are comparing first and the third multiple. So that's why this relation is coming. Your, your logics are right. I'm just saying that because they are multiples of five, seven and nine. So that's why these, these logics are turning out to be correct. So I'm absolutely fine with that. No issues if you have done with that particular logic. Okay, great. Who is this guest? Can you tell me your name, please? Okay. After this question, simple question. There are so many Aditya's. Let me check how many of you remember what we have done in classes. Okay. Second one is the right answer. Absolutely correct. This was actually later coding. So if you remember the alphabets A from, yes, some of the letters A to Z we did, we did from A to Z. A was one, B was two, C was three, D was four and likewise. So F is six and P is equal to 16. So if you add it, you get 22. G is seven and N is 14. If you add, you get 21. Similarly, E is, J is 10. E is five. So you get 15. Now what is K? So I, JK, K is 11. So 27 is there. So 27 minus 11 is equal to how much? 16. So I know that P is 16. Answer has to be P. So it was basically alphabet coding. And if you remember how to mark alphabets, this question could have been done pretty easily. Okay. So now let me go to the next question. Let me look at the leaderboard now because we are coming to the end of the session. Perhaps this is the last question. Okay, solve this. Remember the hierarchy. If you remember the hierarchy, you will find this. Okay. I am surprised to know that even if I'm saying time and again that you remember the hierarchy, I'm not getting full, I mean all of you getting it right. Okay, no issues. If you add three numbers, seven, 10, 18, 23, not giving me 84. The basic hint is here, 11 into 11 is 121. Then what is this five and two doing? So this particular question is 11 into 11. And give me a moment. 11 into 11. And if you multiply five and two, this gives me 10 and divide it by 10. So I get 121. I will check this logic here. So I do 8 into 5 into 7 into 3 divided by 10. So this gives me 2. This gives me 4. I get 4 into 3, 12 into 7, 84. So my logic looks like to be correct. The same thing I will do here. 6 into 5 into 7 into 2 and divided by 10. So this and this one, 6 into 7 is equal to 42. Answer is 42 here. So this particular question was a hint here because 11 into 11 is 121. So what are these two numbers five and two doing? And because I am doing the multiplication, you can't add, you can't subtract. So you multiply and divide if you have to get the same number. So this question was good. Okay, we will solve one more question and then we will leave. So at least one more question. So let me now go to the leaderboard quickly. Okay, great. Next question. Last question. Remember the hierarchy. Should I finish the quiz? Okay, fine. I will continue. Okay, I'll finish the quiz. Yeah, I'll do. Okay, so 24 people have given me right answer. Very good. Let me be a bit quicker now. Okay, what is the hierarchy? Hierarchy, the first thing is summation. Which number should I add? Triangles are there, squares are there and circles are there. Add numbers in the triangle, 18 plus 4, 22 plus 11, 33. Add numbers in the circle because it is full 16 plus 5, 21 plus 12, 33. I got the logic 19 plus 8, 27, 27 plus 6 is 33. So answer here is 6. This was the logic in the question. So if that's why in the beginning of the question, only I said that follow the logic. Follow the hierarchy. Okay, quickly let me show you the leaderboard and let me go to different question. I am saying that there were three different kinds of figures triangle. There was circle, there was a square. Add all the numbers in the triangle, you get 33. Add all the numbers in the circle, you get 33. So addition of all the numbers in the square should be 33. Two numbers were 19 and 8. So that gives 27. So 6 was left out in the last one. Okay, solve this. Okay, it's already 9. So those who have something to do, feeling hungry, if you want to leave, you can leave. That's not a problem. You can solve quiz later. And those who want to do the quiz can be logged in and on solving it. I'll try to finish it in next 10, 15 minutes. So okay, very good. Fine. So good. This question, 37 people have got it right. Okay, so now let me show you the answer. Question number 15. Now, very simple question. 56 plus 15 gives me how much? 71. And 22 plus 8 gives me 30. 71 minus 30 is 41. Similarly, 55 minus 16 here is 39. So I have 34 plus 1145 minus 20. That will give me 25. Option 2 is correct. Add this, add this and then subtract. This was the logic. Okay, now let me go to next question. Easy question. Looking at it only, I found out the answer. Easiest question possible. Okay, in this question, there were three numbers. So 594, 198 and 66. If you have those three numbers, 594 divided by three is 198. 198 divided by three is 66. And 66 divided by three is 22. So 22 would be correct answer. You have to start from 594 and keep on dividing it. So that's how the question was. So I'm not solving it. It was a very easy question. I'm directly going to next question. Solve this. Remember the hierarchy. Okay, what's the answer? So fine. Let me show you the solution of this question. So if you look at this question, division by three, you look at this question four into two minus one. Very simple question. Four into two minus one is equal to seven. And this seven into two plus one is equal to 15. Now this 15 into two minus one is equal to 29 and 29 into two minus one. So you go in clockwise direction starting from here into plus one is equal to 59. Then 59 into two minus one is equal to I have 170 and this 170 into two plus one is equal to 235. So I have to do 235 into two minus one. And this gives me 469 as answer. Answer here is 469 fourth answer. Okay, so that's the answer here. Let me go to another question. Good. Next question is pretty similar question. Okay, if you look at here in this question, we have to multiply the central number to each number and add one. So if you get three into five plus one is 16, then 16 into five plus one is 81, then 81 into five plus one is 406. Then 406 into five plus one I have to find. So this will be 406 into five plus one that gives me 2031. So that was the logic out here. So that's why in the beginning only I said it is almost equivalent of as the previous question. Okay, so on this very simple question. Aditya Kalajya, you focus on solving question. So then let others solve the question. Okay, simple question as far as my this thing is concerned. Yes, pretty simple question. So if you look at this question, each row A, B, C is coming once. A, B, C, A, B. So here C would be there. So all answers are C. And in each column, multiplication of two numbers is equal to multiplication of a number in the middle row. So three into nine is 27, four into two should be eight and 16 into four is equal to 64. So four into two is how much eight. So eight C is the answer. Hence first option is the answer here. Okay, hello, hello. Rohit, this is Ankur. Guys, so the next two questions will be the like filling up questions which we had at last. What I have done today is I have shuffled before like breaking the climax that okay, who is the winner. There are two questions which are sort of a feedback. So please face them. Rohit, please next slide. Easy, moderate or difficult quickly. Okay, like you can move forward. Next question will come. Okay, the question is on the board. Great. This question was a bit difficult. So I can understand this kind of response. Now this is the question. Now question here is the logic here is five into one second. Not five into five plus three is equal to eight. So one number from the side and one number from the center. So five plus three is eight. Now if I have to go here, then one number from the side and one number from the center. So eight plus four is 12. And then one number from the side and one number from the center. So 12 plus one is equal to 13. So answer here is eight plus four 12. So third option is correct. Few questions would be like this, Aniket. So not all the questions would be that simple. If you could have looked at this year's NTSC, that is of no use, Aryan. If you could have looked at this year NTSC. Okay. So perhaps that's the end of the questions that we have. So thank you so much for joining. Very good, Laksh. Aryan, Pranav, Siddharth, Aditya, Sneha, Aniket, Shalini, Shobhita, Krithi. So very good. And thank you so much for joining all of you. I hope you enjoyed the quiz and see you all sometimes next week. So thank you so much. Thank you guys. Bye. Very good, Laksh.