 For those who do not understand the questions. If at all anything is there, please share with me and I'll Help you. Okay. Okay. So all of you focus on your Accuracy once again, so we'll count the accuracy guys. Let me see These accuracies are being monitored for all your future purposes including participation in acceleration. So hence Please maintain your accuracy lower accuracy means automatically you will be out of Big game. So hence Okay, so we'll start eight o'clock it is and Yes, so the first question is on your screen First question on your screen Okay, so last 10 seconds these kind of questions you'd have seen in your previous grades as well Very good. So everyone has any ways voted but still Not everyone could get it right. So this was very simple question and Okay, so 745 So, you know the clock this is minute hand and at 745, let's say this is six and This is seven and this is it Okay, so each Each hour corresponds to 30 degrees and Since it is 745 the hour hand will be exactly three fourth Three four doesn't it divide into four parts Four part each each of them is seven half degrees. So it's 30 plus 7.5 degrees Answer is 37.5 Yeah, this is the answer. So many of you have not got it So answer is 37 and half. Yep. Also the options were pretty much Indicative of that. This is not possible. This is not possible because it cannot be a regular angle at What I mean by order is the minute sign is between 7 to 8 so it will not be making a very perfect angle Okay, yes, so options were very obvious, okay, so the first Need a board of me. So mention your accuracy. So obviously one by one or zero by one One by one or zero by one Okay Next question on the board Be ready Here is the next question. Okay, so here is the response. I Hope you would have noticed there was a slight Yeah, I can I could sense that so most of you have made it wrong. I know most of you would have fallen for the trap which was there in the question and I told you the questions would be easy But options would not be so the question was to find out the compliment of the angle and Most of you have found out the angle itself Okay, so as I told you Right, so hence answer is 60 degrees And it was very simple to solve half of the compliment of an angle That means if x is compliment x is the angle 90 minus x is the compliment 90 minus x by 2 is equal to fifth of the supplement So 180 minus x is the supplement and divide by five So it was plain and simple linear equation But I knew that you will not read the question properly and you will fall for trap So 45 minus x by 2 is equal to 36 minus x by 5 So hence 45 minus 36 is x by 2 minus x upon 5 So 9 is equal to 5x minus 2x upon 10 So x is 30 degrees if you solve it you will get x is 30 degrees right, but the question was the compliment of the angle is 60 degrees, okay, so the answer was 60 degree and Response clearly shows the questions appear to be easy. Oh good Next question on your screen. So these are degrees minutes and seconds, right? So 36 degree 43 minutes and 9 seconds. Okay, so last five four three two and One Okay, so the question was very simple and easy. You don't need to calculate anything but still not many of you could get it so I need to explain this to you and So you have to read it properly. It was supplement of Compliment of this Okay, supplement of the compliment of this so supplement of compliment of this is nothing but 180 minus 90 minus this number 36 degree 43 minutes and 0 9 seconds. So you don't need to calculate anything So it was simple 180 minus 90 plus 36 degree 43 minutes and 0 9 seconds 180 minus 90 is 90 so 90 plus 36 126 and the game was done Okay, so Yep, so you don't need to you know many people would have got disturbed by these figures But you actually didn't require this in the question Yeah, tell me So basically they asked the supplement of the compliment so first find the compliment then subtract the supplement from the Exactly what I was hinting upon Sunaina. I don't need to do it. You will save time And then subtract again it will be waste of time, right? So hence this was the demand of the question and the demand of the question helped me actually So now I am adding this angle to what 180 minus 90 which is 30 So it is very simple to add 30 to 36 degree 43 minutes and 8 second I'm sorry No, no, so what I'm just I was giving you examples so adding a few a integer to this will be much easier Then subtracting it Right Okay, so hence this is the answer 20 questions today My wish on why what happened? So here is the next leader board Okay, so this is the new leader board Rita Tanvi Srijan Nishant, Raghav, Pooja, Anuya, Maverick. Who's Maverick? Identify please Who's who's this guy Maverick? Jhagrav Next Vignesh and Tony Next question on your board instead of wasting time on chat Please focus on the question spend time and solve it. Please take time and solve it. There is Something in the question. So all of you say easy in the beginning, but the response doesn't show that so here is the Final if it is so easy Maximum people are Making it wrong. Okay, so Now, you know why why such questions are set Okay, so here is the question in an examination student made a mistake of calculating the complimentary of given angles So let's say the given angle was X and he found out 90 minus X, but he should have found out 180 minus X. This is what he wanted to find out find out the incorrect answer So this is incorrect answer was one-third of the correct answer so Sorry Yes, the incorrect answer was one-third of the correct answer. So this is the equation Okay, so hence 90 minus X is equal to 60 minus X by 3 Okay, so hence what will happen 30 is equal to X minus X by 3 So 30 is equal to 2 X upon 3 Right. So X is equal to 45 X is equal to 45, but then you have to find out the correct answer not the angle The question was not to find out given angle. The question was to find out correct answer and correct answer was supplementary of X So hence answer was 135 degrees Okay, so hence Please as I keep saying Durga Dhani, so please be focused when questions are easier It's more tough Okay, next and people are also not performing every time. Okay Next question on those on the screen guys, please again Stay away from unnecessary chat easy peasy and all that stuff easy is when when you celebrate after your win not before that. I Hope the image is clear. Otherwise, I will demonstrate here in my screen. So let me show you Suchir stay away from unnecessary spamming So I couldn't see one of the angles and I'm Like the nine look like a zero and I messed up the question Does it look like 69 degrees So but like when you see my mentee, it's like looks like a zero Not everyone is able to get this why less than 50% Yes, so it was easy very easy so You did not do anything actually Clearly M is 69 degrees M is 69 degrees and why is that why is M 69 degree what philosophy which law which rule says So L is parallel to N So M is 69 degrees because of corresponding angles and then this angle was to be found out And this is nothing but that series X X is Nothing, but 65 degrees plus 69 degrees. That's it. Which law which rule says this What is this rule called which theorem? Exterior angle theorem suggests that the exterior angle will be equal to interior sum of Interior opposite angles opposite to this exterior angle is these two So if you sum them you will get X and that's what was asked so right It should be very Should be done very easily But never mind Let's see this course Sorry, we could just draw that line in between and then Sorry, sorry could not get you just We could just draw the line in Like we could draw a line extending from all like on two sides, so Then 180 minus 16 and 180 minus 65 you don't need to do that because again you have to do 180 minus This in the same time Yeah, yeah, yeah, so how does it help so this is 65 69 degrees. Yeah. Yeah 55 degree same thing Yeah, you can do that with also You can show Yeah, sorry, someone is saying something image horizontally Can you give the image I change the image direction you're saying yes, sir. Yes, sir. It's better when you turn in 90 degrees either way What? Yes, sir, then we draw the figure again It's tricky. It's tricky. You make it tricky Hey, come on guys, do you think they will ask you before putting that past, you know diagram Take a screenshot go quickly open it and rotate it No best way is to get accustomed to these instead of wasting time on all of Right, so hence all those who are trying to you know see none of the seed This is where you don't understand the idea is to trap you there where you are most vulnerable Right, so hence Their questions in all the exams will be like that where you are most vulnerable No, none of the competitive exams will give you a question where you are strongest Possible candidate not at all. So better you get equipped or you know accustomed to these Rather than trying to change the pattern of the question. Okay, so hence now that you have told me I will make sure that I'll give you these kind of questions only you should not have told me this Anyways now Okay, so Okay, yes unnecessarily comments will be barred and you will be thrown out of the quiz, please let's maintain the So this is inception this is Jurassic Park, sir angle D is 34 degrees, right? Angle D is not 34 angle. This angle is 34 here So Drop this no gang shang thing away from unnecessary commenting That's the only reason why your accuracy is not 100% you guys are distracted Just Stay focused on the question. So most of you are at least this is the first question after so many easy questions where I'm seeing 38 out of 58 people Giving the right answer so that suggests that none of the topics are easy. Okay, but it was very Easy so this is 34 and what all do you know? So who knows B is 76, right direct B is 76 degrees You don't need to know if you calculate 76 are only option C Is D is not 76 B B. I'm saying B is 76 degrees. Okay, so Clearly what all if this is 34, this is 76 C is how much handle some property 180 minus 76 minus 34, which is 70 Right, so C is 70 much of this ruled out this ruled out Okay, the moment C is 70 D is also 70 and Yeah, B B was 76. How because of this is 76. This is 76 Right, why are these two equal? Corresponding angles, right? So this is 76 then this has to be 76 alternate interior so Now easy, so if it is So D is also 70 So just in case if you want to solve it properly so 76 plus 70 now And in fact, you don't need to do all of that a is directly equal to 34. Why alternate interior? Right, you don't need to calculate anything else. So a crazy directly. This is alternate to this So a is 34. So immediately out of these two, this was ruled out. So C Okay, so easier one. Most of you have got it also. So nice Yes, I Stated that in the very beginning itself Hmm Okay Some shuffling is happening. Shallow next question guys. Good decision. Very good. Nice. So last five seconds and Let's see how many if you have solved this one and even if you have not been able to oh Most of you have good. So, you know this already. So Formula based question actually so we know that If there's a regular polygon regular polygon is that polygon which has Equal sides all sides are equal is regular polygon. So regular polygon The internal angle is nothing but n minus 2 by n into 180 Okay, this is what the formula is, isn't it? So this is equal to 150 degrees and how do we arrive at this formula? So I told you by angle some property Angle some property. What do we do? What do we know? So this is 180 degrees when n is equal to 3 Total sum of the angle is 180 degrees if you add one more triangle, that is if you make a quadrilateral It becomes n is equal to four four sides are there But two triangles mean n minus 2 into 180 degrees. So Correct, this is how Total the sum of the angles some property of any polygon is there. So if any polygon of n side is there so total angle is one n minus 2 by 180 degree and One angle will be divided by n and this is given as 150 degrees. If you solve this equation you will get n into 180 minus 360 is equal to 150 n Right, and then I'm writing here So this is 30 n is equal to 360 degrees Right, so hence n is Excuse me, sir. Yes, sir. Sir. I got disconnected. Can you tell me the answer last question? Last question was C Oh, thank you Okay, n is equal to 12. So doh decagon doh deca This is a new Okay, doh decagon. So 12 sides of the Polygon revolutions per minute is the usual unit of Rotational motion you would have studied in physics as well Motion rotation is RPM so you now know in How many minutes how many degrees? So in three seconds, how many degrees? Someone's mic is on me. I'm mute. Please read on mute Jagarov, would you know me? Sorry, sir. Okay, so Let's see mixed response. Many people didn't know the answer. Let me explain So a fan is rotating at a speed of 600 revolutions per minute. That means in one minute that is in 60 seconds How many revolutions it is completing 600? 600 revolutions full circle. So in one second, how many revolutions will it do? It will do 10 revolutions In one second, how many revolutions 10 seconds 10 revolutions. So in three seconds It will do 30 revolutions Isn't it now in one revolution one revolution is equivalent to what 360 degrees? one full sweet 360 degrees Okay, and multiplied by how much 30? So 30 into 360 should be the answer So can we assume it another way like it makes 600 revolutions per minute So the answer will be number of revolutions into time Revolutions into time. So you have to reduce the time change the units of time. No, yes, sir You need this is seconds. You have to convert them Yes, sir. Yeah, so that's that's how it has to be done. So hence So basically if you talk in physics that is given as angular this is called angular displacement actually Angular displacement is nothing but angular speed Just studied right into time This is the Formula angular displacement angle is called angular displacement, right? So angular speed Yes, sir. It'll be angular distance because angular displacement is zero Angular angular displacement is zero Yes, come to accelerator then I'll discuss. Okay, it's not zero. So angular displacement is angular speed into time Okay, so How about I thought that a displacement is supposed to be That displacement is In these are two different things. Yes. So one is called linear displacement. What you guys are studying right now is or Translational this is rotational motion. What you are studying is right now is Translational motion Translational motion Okay, when you come to rotational motion Then we'll talk about angular displacements Okay, these are two different There are three types of motion we study in Physics or you know in mechanics translation motion rotation motion and oscillatory motion Okay, so right now in ninth grade your syllabus covers This when you come to 11th grade both of these you have to study Okay, anyways, so then we'll discuss angular displacement is equal to angular speed into time and here angular speed is rpm But rpm is not the right unit. It has to be converted into radians per second But then I have just transformed the question for you because it's an it's an angle based question So hence so hence I didn't want to introduce this formula to you right now But you can solve it like this also right so total number of total angle swept by the blades will be this so much 3 into 36 is one not 8 and double zero degrees So this much Angle D. Yeah Next question guys on the board. Let me show you the question here. So this angle is 130 degrees This angle is 40 degrees So my thing Sorry Your voice is a coincidence Oh Yes, sir, so my my My software did not allow me to click it clicked on its own. Oh glitch Okay, so most of you have got it but again not 50% So this is the Well, I showed the leaderboard first never mind. Oh my god. Oh my god Oh my god, what happened? So so many people did not I would like to see that first once again so this was the answer and this was the So one two three four five people could not get the right answer. Oh Okay, never mind. So here was the explanation to this I hope I think most of you would have done this one that you draw. Sorry. So I don't know how to So let's say You draw another line parallel Okay, so this becomes 40 and This becomes 50 why 50 because consecutive interior angle if there are two If there are two angles if there are two You know Conceive interior angle sum is 180 degrees. That's what we learned in lines and angles. So hence this D is equal to 90 degrees D is 90 so D is 90 2d is equal to 180 degrees and That's a straight angle. There was 2d not D Okay, so hence the right angle was Okay, so once you get 50, how do you say that's the right angle? This angle this is this hole is this hole is right angle. Why because this is 40 here This is 50 here. So 40 plus 50 is 90 Got it on Yes, sir here. So that is 90 so that the moment it is 90 D is 90 do is 90 means 2d is 180 180 So straight angle Good next question, please. So here is Next question, okay, let me show you Yes Leftmost okay, let me write this. This is X Cool, so most of you are actually I wanted to rescue this question But I could not While I was preparing this question I was solving as well and I had left these marks over here This was these were not part of the question actually, but anyways, you got the advantages anyways any which way it was easy question So this was not given these X were not given. So you have to Say that this is this equal to this because Corresponding angle and this angle is equal to this angle because alternate angle, but I know X plus Y plus Y is 180 degrees Right, so hence that's why I'm wondering why there was such a perfect text and it's weird X Now you understand, right? So I was solving that question at you know sometime back when I was preparing the slide and Probably mistake that those marks I'm sorry So It is yes 90 minus X upon 2 Very easy question. Chalo never mind But still some people could not get it. I had written the answer there But you could not pick it up never mind Next question Okay, so next question is here. Hope you are able to see this. This is X This angle is X this angle is 25 degrees and this angle is 105 Degrees What's your accuracy? Those who are saying easy now. I'll check their accuracy level back. I can't pay. I have all the data. Don't worry Sundar If you are if you know you are correct, you're correct Yes, who's this one's the true false things start After 12th question Yes So most of you have got it correct. So this was very simple there were multiple ways you could have solved this one is directly Pluse it to this Okay, so this is X because of corresponding angles, right? This angle is also X. So that is X 130 degrees Thank you I am also doing the same thing. So this X is 105 plus 25 because exterior angle. So these are interior opposite angles So 105 plus 25 is 130 degrees. Yeah, you could have done that or you could have done this also Right. I don't know how to Point our options eraser so Yes Then now this angle is 105 again so Let me write it here. So this angle is 105 again and again X is the exterior angle to some of 105 plus 25 any which Okay, so 130 is the right answer. Oh, sorry Gargi if that's happening as have been have been happening So Those things are happening. No problem Next leaderboard Next question on the board guys. Let me show you this here So, let me write these angles. This is X plus 15 This is this angle here is 3 y and this angle here is 2 y plus 25 So X plus 15 is 2 over 25 are vertically opposite angles. These two are, yes What's involved in the question that I didn't take my accuracy for 9th and 10th question You didn't understand Tanya. So time is up sir. Time's up Okay, so still many people could not get it right Okay, so it was very very simple question actually so X plus 15 is equal to 2 y plus 25 first of all Okay, and 2 y plus 25 supposed to be 85 It is supposed to be 95 because there's a question I got 85 Find the supplement of Okay, let's see so 3 y is equal to how much 3 y is 2 y plus 25 so y is 25 Okay, so if y is 25 So is if y is 25 what how much is X so you can you can calculate from here? So this will become X plus 15 is equal to 15 2 y is 15 plus 25 So X is 16 am I right? Yeah X is 60 and Y is 25 So X plus Y is 85 X plus Y is 85 and you have to find out what supplement of this. So this was the answer right, let's see see lines and angles are Inherently very easy topic. So skbaad, you know, you have to have some kind of Drama there know to make it little tricky. Okay, so I'll set for the MCQs Not MCQs 2 and 2 and follows. There are 8 questions 8 seconds per question. You will not get much time to think it is Obvious or not obvious. So here is the first question on the screen. So the statement was false But still many people have got it So statement was very much false. Why because compliment of an acute angle is compliment will never be obtuse Compliment is never going to be obtuse because some of the two triangle is two angle is 90 degree Okay, so if you see X plus Y is 90 degrees If two positive angles are added and you are getting 90 so either of them will be less than 90 So it cannot be obtuse Cannot be obtuse at all. So false Okay Next so you have to be quick now. So we saw the accuracy part. Let's see the Quickness how pick you are So stay calm stay focused don't get distracted by don't look at chat at all look at chat after the 8th question Okay, that's how you can score well. So next question Don't get distracted again. I'm telling you focus on the question. So the answer was true So a compliment of an angle cannot be equal to supplement ever Okay, so Very easy it was Because if you see 90 minus X if it is equal to 180 minus X that will that will say 90 is equal to 180 Which is not true never possible. So hence not possible never Okay Understood by all. So these statements you should remember as if they are, you know, you should be part of your okay Part of your knowledge base, okay Next time someone throws this question to you don't think that time It's as good as you know, which fit as common as you can't divide by zero in mathematics like that. It's undefined So remember like them next exterior angle is external angle. Okay, that statement was false So good, yes, they can be acute as well why you can see Many cases actually so if the if the sum of the interior opposite angle, so let's say this is Bad drawing bad drawing wait, so let me draw up obtuse Let me draw an obtuse angle obtuse angle triangle. So this is an acute angle, right? So let's say this is greater than 90 So this angle which is some of this plus this is less than 90 so it can be acute Can be acute Okay, so next questions next question on the board now some previous stuff Let me see if you remember these so I remember the answer Still Fifty-fifty oh yeah, why why? Clearly a minus one is root three I gave you in last centaur also last time it was two over there. This time I put a three over here So a minus one cube Is equal to root three cube which is three root three, which is an irrational number? So this is false Right. It's a false statement Okay So previous stuff also has to be revised guys It shows that lots of how many of you have again Forgotten all those things Okay, next question. This treatment was true statement. Isn't it so? If there's a polynomial FX FX is equal to let's say We had to be power a n xn if you go by the Regular definition which we talked about Finally a 1x plus a 0 Right now f 0 is 0. So if you put x equals to 0, you're getting 0. That means all will become 0 So it will that means a not is also 0. So the constant is also 0 So any function or any polynomial any polynomial where F 0 is happening or F 0 is becoming 0. That means there is no constant term in that FX, I hope you understood this so Remember this Any polynomial where there is No constant then FX will be equal to 0 or f 0 equal to 0 and the vice-versa Next it was very very again identities. You need not Do all the expansion and other things and you must not forget the identities also So a plus b is equal to c means a plus b minus c is equal to 0 Right, and you square both sides. What do you get a square plus b square plus c square minus or sorry do a b minus 2bc Minus 2ac is 0 That means a square plus b square plus c square is equal to 2 minus 2ab plus 2bc Plus 2ca right you Yeah, so glitches I can understand but please understand me this thing How do you you need not do all these calculations either in the in the right? You know and the you know exam or something. So what do you need to do is? This will never be possible. You have to remember this This will never be possible because if a plus a and if any one of them is Negative then at more at most two will be of negative sign not all will be same sign So this is never this is never possible. So please understand this unless a is equal to b is equal to c, which is 0 So only when Right, okay Next next question ready four four plus two three is equal to one plus three true or false Very good It's true. So most of you would have tried Solving it you need not solve it. You'd have simply squared it Square this what will you get one plus three plus two root three done fast four plus two root three, which is here. So true Okay, so Don't try to win. This is this is the game Right, so you're just square it. You need not find the square root Okay, and you'd have got this true. So statement was very much true problem is remembering Nani Next and the last question of the evening the answer was yes true and most of you If you remember we had discussed this Now to solve this third point three one bar is simply 31 by 99 and 68 bar is 68 by 99. Isn't it yet? We had done this Okay, add this one. So you'll get 99 by 99 one Okay Understood. So you have to retain all of that what we have learned previously I told you did I tell you that if this is 0.21 bar, what will this mean? This is simply 21 upon 99. You don't need to calculate anything Right. So these are all shortcuts So you can add them will give you one right up so on yeah, so but you can't add something which is under the bar Right, it is repeating. What does it point 3 1 bar mean 3 1 3 1? If you add them, you'll get 9 9 9 9 9 9 9 9 9 9 9 9 ok, but but actually that is limiting to one, so hence answer was true, so that brings out or brings the last question is over, so hence closure to the quiz and here is the final leader board, so Tony, now who, who won, Tony has the highest number of points, very good, Tony Srejan, Raghav, Anuya and wait one minute, let me see once again, so who are, who all are there, so Tony, Srejan, Raghav, Anuya, Nishant, Karun, Vihan, Vinesh, Haritha and Nithin, no new entrant in the top 10, very good guys, keep it up, good, please remember the previous accuracy, please let me see the score on accuracy, all of you, accuracy 16 by 20, okay, next, all of you please put your accuracy results here, 15 by 20, okay, come on, come on, 12, 16, 17, so far 17, 17, 17, 17, 17, maximum is 17, someone said 18 also, anyone 18, anyone who got 18, Tony, Tony, okay, so what is the learning guys, learning is stay calm, don't get distracted and stay focused, you will be able to solve the questions, more you are distracted, more you lose on, so many of you, if you just reflect back just after this quiz, there will be two, three questions, definitely you have lost just because you didn't see the question properly, one was that, so three questions, yes sir, next time can you put like two extra regular questions instead of true and false, why, so because like true and false is really fast, so like, or can you increase like two to three seconds time, so just let me draw an analogy, so let's say you are Sachin Tendulkar, you're not able to play the bouncers, let's say just, just in case, so will you go to Slyvector or Malcolm Marshall or Alan Donald that hey, don't bowl bouncers to me or what will you do, you'll go to the next and ask your team members to, what, bowl bouncers only to you, so that you are ready for that, is it, so instead of, again, don't try to modify or alter the background, you yourself get accustomed because this is reality, today or tomorrow you are going to be in such spot, then what will you do, so it's better, the more you sweat in peace, the less you bleed in war, so remember that, okay, so nothing is going to change, in fact it is going to be more drastic and more, more dangerous, so that you guys are trained, this is the training, this is not the real battlefield, you will learn or you will get the benefits in the real battlefield, so hence, so is there a general awareness this Sunday? So can we have a general awareness or geography? So many, so many, so let's do geography because that will aid to your missing as well, instead of astronomy, so yes, okay fair enough, so I'll do biocentamard, that's on Saturday, can we do an astronomy centamard, please, astronomy, oh my god, so I have to, I don't know that much of astronomy, so I'll have to invite my again friends from... Sir, no astronomy, sir, nobody will get anything, she will be like the only person who answers. Geography or Saturday or Sunday, astronomy is so... Yes sir, no astronomy, astronomy is nice sir, sir, it's really good, it's about the space, it's amazing, nobody knows about the space, sir, general awareness, you're supposed to know about space, guys, silence, I'll give you all silence, please, I'm here, don't worry, so don't fight, both, you know, general awareness on Sunday, geography, guys, we will be, see, our geography quiz was half done last time, so let's complete that because otherwise, you know, so those two will be anyways benefited out of that, so let's do that first, general awareness anyways will do no problem, so we'll do that, don't worry. No, Saturday or Sunday? Saturday, there is a bio quiz, a bio, this thing, centamard, first day we'll have physics centamard, all these things we'll do on Sunday, okay, let's go, bye, take care, stay safe, see you guys. Thank you sir, take care, bye.