2018 · Q31
The sum of ages of a father, a mother, a son Sonu and daughters Savita and Sonia is 96 years. Sonu is the youngest member of the family. The year Sonu was bom, the sum of the ages of all the members of the family was 66 years. If the father’s age now is 6 times that of Sonu’s present age, then 12 years hence, the father’s age will be
Elementary MathematicsRatio and Proportion
- A44 years
- B45 years
- C46 years
- D48 years
Explanation
Let Sonu's age be s. The other four members have aged s years since Sonu's birth: 66 + 4s = 96 - s, so 5s = 30 and s = 6. The father's present age is 6 x 6 = 36, so 12 years hence it will be 48. Hence option D.