Question

What is 20% of ( ) equals 100

Answer 1

20% of something that equals to 100 is 500 because 1/5 of 500 is 100

Answer 2

100 is 20% of 500
We have, 20% × x = 100 or, 20/100 × x = 100 Multiplying both sides by 100 and dividing both sides by 20,
we have x = 100 × 100/20x = 500
If you are using a calculator, simply enter 100×100÷20, which will give you the answer.