What is D's age (in years)?
Consider the following for the next (05) items that follow : A, B, C, D, E, F and G are cousins. D is thrice as old as A. Further, C is as many years younger to B, as G to E and E to D. The average age of D and G is 16 years; the average age of A and E is 11 years; the average age of B and C is also 11 years. B and C have equal weight. A's weight is 10 kg less than that of B; D is 4 kg heavier than E; E is 4 kg heavier than F; F is 4 kg heavier than G. Further, D has age-weight ratio of 9: 20, where age is in years and weight in kg; A has age-weight ratio of 2: 5. Moreover, none of them is more than 40 kg.
- A. 15
- B. 16
- C. 17
- D. 18 ✓
Correct Answer: D. 18
Explanation
From the passage, E is equidistant from D and G in age, so E is their average, giving E = 16. The average age of A and E is 11, so A+E=22 \implies A=6. Given D = 3A, we get D = 18 years.
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