Question

A man has a mads of 120 kg. He reduces his mass by 15%. How many kilograms is that?

(Answer is 18 but i need an explanation)

Answer 1

18kg

Explanation:

his mass = 120kg

15% of his mass = 120 * 15/100

= 18kg

Answer 2

Explanation:

weight reduced=120×15 %=18