If the age of father is 4 years greater than the mother and 28 years greater than the son,then what is the age of the father? which one should be used to calculate the age ? A) mother/son = Non-prime number B) mother/son = Perfect square number

only A alone is sufficient
only B alone is sufficient
both A and B are required
Cannot be answered

Correct Answer: only B alone is sufficient

Explanation:

For the given problem there are three possiblities.
Father's age can be = 36, 31, 29
Mother's age = 32, 27, 25
Son's age = 8, 3, 1.

By using only B it can be calculated.

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