Question

if 25% and 30 % of a number is 21 then find the number??????
please give me answer.........
please.......
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Answer 1

Answer:

Let the number be x

25% × x = 21

25/100 × x = 21

x = 21 × 100/25

x = 21 × 4

x = 84

Answer 2

The numbers are 84 and 70 respectively.

Let us assume the first number to be x.

It is given that 25% of that number is 21.

So, 25/100 of x = 21

⇒ x/4 = 21

⇒ x = 21*4 = 84

Let us assume the second number to be y.

It is given that 30% of that number is 21.

So, 30/100 of y = 21

⇒ 30y/100 = 21

⇒ y = 2100/30 = 70

84,70 are the answers.