Problems on Ages - Arithmetic Aptitude Questions and Answers

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A person's present age is two-fifth of the age of his mother. After 8 years, he will be one-half of the age of his mother. How old is the mother at present?

32 years

36 years

40 years

48 years

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Answer : Option C

Explanation :

Let the mother's present age be x years.

Then,the person's present age = $( \frac { 2 } {5 } X)$ years

$( \frac { 2 } {5 } X+8)$ = $\frac { 1 } { 2 }$ (x+8)

2(2x + 40) = 5(x + 8)

x = 40

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