Question

25% of 1 numbers is 21 full stopwhat is the number

Answer 1

Suppose the number is A
A×25/100=21
A=21×100/25
A=21×4
A=84
Therefore the number is 84.

Answer 2

let the no be x.
25/100 of x = 21
x= 21×100 / 25
x=21×4
x=84 (ans)