Kamla got married 6 years ago. Today her age is $1\frac{1}{4}$ times her age at the time of marriage. Her son’s age is $\frac{1}{10}$ times her present age. What is her son’s age ?
2 years
3 years
4 years
5 years
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC CAPF – 2009
She got married 6 years ago, so $A = M + 6$.
Her present age is $1\frac{1}{4}$ times her age at marriage, so $A = \frac{5}{4} M$.
Equating the two expressions for $A$: $M + 6 = \frac{5}{4} M$.
Multiplying by 4: $4M + 24 = 5M$.
Subtracting $4M$: $24 = M$.
So, Kamla’s age at marriage was 24 years.
Her present age is $A = M + 6 = 24 + 6 = 30$ years.
Her son’s age is $\frac{1}{10}$ times her present age.
Son’s age = $\frac{1}{10} \times 30 = 3$ years.