Question

2.

Answer 1

Answer:

50 years old

Step-by-step explanation:

Let the age of father be x years, the age of elder son be y years

and the age of younger son be z years.

From the first condition, we have

x=2y           ...(i)

From the second condition, we have

x+10=3(z+10)

∴x+10=3z+30

∴x−3z=20      ...(ii)

From the third condition, we have

y−z=15             ...(iii)

Put the value of y from eqn. (i) in (iii) we get

x−2z=30           ...(iv)

Solving (ii) and (iv), we get

x=50

∴ the age of the father is 50 years.