Question 10
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A father and son’s present ages are described in the table.
| Person | Present age |
|---|---|
| Father | 36 years |
| Son | one-third of the father’s age |
In how many years will the father be twice as old as the son?
- A 12 Correct
- B 6
- C 18
- D 24
Correct Answer: Option A
Son = 36 ÷ 3 = 12
36 + t = 2(12 + t) → t = 12
Check: in 12 years, 48 and 24 ✓
Trap: 6 makes them 42 and 18.
Answer: 12
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