Question

The mean of the ages of father and his son is 27 years. After 18 years father will be twice as old as his son. Their respective present ages are .....

• A. 42,12
• B. 10,14
• C. 30,24
• D. 36,18

Answer 1

Answer:

A. 42,12

Sum of ages of father and his son =27 x 2 =54 years Let present age of son be x years. and present age of father be (54 - x) years. As pier question, 2(x + 18) = 54 - X + 18 2x + 36 = 54 - X + 18 3x = 36 x = 12 years Hence, present ages of father and his son are 42 and 12 years respectively.