2022 · Q105
The average age of father and elder son is 35 years, the average age of father and younger son is 32 years and the average age of the two sons is 17 years. What is the average age of the father and his two sons?
general-mental-abilityquantitative-aptitude
- A30 years
- B27 years
- C28 years
- D29 years
Explanation
From the given averages: father + elder son = 70, father + younger son = 64, and the two sons = 34. Adding these gives 2(father + elder + younger) = 168, so the three ages sum to 84. The average age of the father and his two sons is therefore 84/3 = 28 years.