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1. The present age of son is half of the present age of his mother. Ten years ago, his mother's age was thrice the age of her son . What is the present age of the son?
- A. 25 years
- B. 25 years
- C. 25 years
- D. 25 years
Answer: Option B
Explanation:
Let, present age of son be 'x'
" " " mother be '2x'
So, 10 years ago, age of son was 'x - 10'
" " " " mother was '2x - 10'
ATQ,
2x - 10 = 3(x - 10)
= > 3x - 2x = 30 - 10
∴x = 20 Ans.
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