Question

a number is 21 more than its two fifth.find the number.

Answer 1

Let the number be a

A/Q -->
a = 21 + 2/5a
a - 2a/5 = 21
3a/5 = 21
a = 105 ÷ 3
a = 35

So the number is 35

Hope This Helps You!

Answer 2

Hey!

Let the number be x

According to question.

x = 2x/5 + 21

x-2x/5 = 21

(5x-2x)/5 = 2

3x = 21 ×5

x = 105/3

x= 35