A) 10 years
B) 5 years
C) 20 years
D) 25 years
Correct Answer: A
Solution :
Suppose x years ago, the ratio of their ages was 3 : 5. Then, \[\frac{40-x}{60-x}=\frac{3}{5}\] \[200-5x=180-3x\] \[2x=20\] \[x=10\,\,year\]You need to login to perform this action.
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