Question

Yoku is putting on sunscreen .he uses 2ml to cover 50 cm2 of his skin. He wants to know how mamy milliliters of sunscreen (c) he needs to cover 325 cm2 of his skin

Answer 1

2/50cm=x/325cm
2*325=650
650=50x
x=13
13milliliters he has to use to cover 325 cm of his skin

Answer 2

he will need 13ml of sunscreen