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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 in kg; A has age-weight ratio of 2 : 5. Moreover, none of them is more than 40 kg.
What is the average age (in years) of B, C, D, E and G ?
12
13
14
15
- The ages and relationships can be deduced from the clues:
- D is thrice the age of A.
- The age differences between C & B, G & E, and E & D are the same.
- Average ages: D and G = 16, A and E = 11, B and C = 11.
- Weight details:
- B and C have equal weight.
- A is 10 kg less than B.
- D is 4 kg heavier than E, who is 4 kg heavier than F, and F is 4 kg heavier than G.
- Age-weight ratio for A is 2:5.
- Solving these relationships, ages are figured out.
- Average age calculation of B, C, D, E, G:
- Let's say A = x, then D = 3x.
- Using the averages and age difference relation, calculate individual ages.
- Calculate: (B+C+D+E+G)/5.
?? After solving, the average age of B, C, D, E, and G is 13 years.
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