A is 6 year younger than B The ratio between B 39 s present age and C 39 s present age is 12 5 respe...........

Quantitative Aptitude(IBPS RRB CL) Problems based on Ages

A is 6 year younger than B. The ratio between B's present age and C's present age is 12 : 5 respectively. If A's present age is twice C's present age, what is B's present age (in years)?

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Explanation:

Let the present age of B and C be 12X and
5X respectively.
A = 2C .........(Given)
A = 10X
According to the question:
A = B - 6 ....... (Given)
10X = 12X - 6
X = 3
B's present age:
B = 12X = 12 × 3 = 36 years