Seema 39 s present age is four times her son 39 s present age and four seventh of her father rsquo s...........

Quantitative Aptitude ( CCS) Average

Seema's present age is four times her son's present age and four-seventh of her father’s present age. The average of the present age of all three of them is 32 years. What is the difference between the Seema’s son's present age and Seema's father's present age?

44 years

48 years

46 years

Cannot be determined

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Explanation:

Let Seema’s son’s present age = x years
∴ Seema’s present age. = 4x years
∴ Seema’s father’s present age = 4x × 7/4 = 7x years
Now x + 4x + 7x = 32 × 3
= 12x = 96
x = 96/12 = 8
∴ Required difference
= 7x – x = 6x
= 6 × 8 = 48 years

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