Q146
ArithmeticAverages & Ages
The difference of the ages of Rohit and Axar is 12 years. The ratio of their ages is 3:5. The age of Axar is
- a.32 years
- b.24 years
- c.28 years
- d.30 years
Answer: (D) 30 years
Let the ages be $3x$ and $5x$. The difference is $5x-3x = 2x = 12$, so $x = 6$ and the ages are 18 and 30 years. The key takes Axar as the elder (30 years); the question does not actually say who is older, but 18 is not among the options, so 30 is the only possible answer.