Question

If 15% of a number is 30 and 40% of the same number is 80, find 25% of that number.

Answer 1

50

Explanation:

let the number be x

15% of x= 0.15x

0.15x=30

(divide both sides by 0.15)

x= 200

25% of 200 = 25/100 *200

= 50