 Let us play with percentages. So let's say we have some total and there are certain number of balls So let's say there are 55 balls. So these are total balls and out of these 30 are orange balls 15 are yellow balls and 10 are blue balls. What if we wanted to find out percentage of Blue balls, how do we find that the method to find this out is to put the required Category in the numerator. So we know the number of blue balls and we know the total as well I'm going to put the total in this color 55 Now we want to convert this into percentage percentage always has denominator as 100 and we just need to find out what is the numerator to it and this will give us the required percentage answer So what we need to solve is 10 divided by 55 is equal to Question mark divided by 100 How do we solve this? We can cross multiply. So From here, we can cross multiply and we can write 10 times 100 is equal to question mark times 55 to find the question mark We can divide both sides by 55. So we have 10 times 100 divided by 55 gives us the percentage and required answer and so if you solve this you get 1000 by 55 or 18 point 18 percent Let me just write it in blue so that we know it's the percentage of blue balls So the number of blue balls in the bag this circular bag is 18 point 18 percent Now let us try and find out the percentage of orange balls in here So I have just quickly written down the percentage of blue balls. Now we need percentage of orange balls So in the numerator, we will write the required criteria or the number of orange balls, which is 30 and the total Total is 55. Now when we need to convert it into percentage We need to write 100 in the denominator and let's just write x for the percentage of orange balls We cross multiply and we get 30 times 100 divided by 55 To be equal to x and so once we solve this we get x is equal to 54 point 54 and so the percentage of orange balls in the bag is 54 point 54 percent Similarly, we can find out percentage of yellow balls that will be given by 15 divided by 55 Quitting it to certain y divided by 100 y stands for yellow yellow ball percentage Once we cross multiply we get 1500 divided by 55 to be equal to y and that is 27 point 27 So any total like this when we need to find out the percentage of different numbers for that total We can simply equate it to x by 100 or y by 100 where x or y are variables and we can find the percentage for the given total