Question

The ratio of ages of jack and sill is 4:3.The product of their ages is 432.What will be ratio of their ages after 18 years

Answer 1

Let their ages be 4x and 3x.

Therefore,4x×3x=432

12x^2=432

x^2=432/12

x^2=36

x=√36

x=6

Therefore,

Jack's age=24;Sill's age=18

Therefore,

Jack's age after 18 years=24+18=42

Sill's age after 18 years=18+18=36

Therefore,the new ratio is 42:36=7:6