Question

A and b are 3 years 2 years old respectively. Their father is 40 years old. After how many years, father age would be the twice of combined age of a and b?

Answer 1

Answer:

10 years

Step-by-step explanation:

Let after x years father age would be the twice of combined age of a and b?

After x years there ages will be

a: 3+x

b: 2+x

father: 40+x

as per question:

40+x=2(3+x+2+x)

40+x=2(5+2x)

40+x=10+4x

3x=30

x=10 years