- A55
- B40
- C50
- D45
Step-by-Step Solution
From (M-10) = 4(S-10) we get M = 4S-30; from (M+10) = 2(S+10) we get M = 2S+10. Solving, S = 20 and M = 50 years.
Answer: C) 50
Ten years ago a man was four times as old as his son. Ten years from now he will be twice as old as his son. What is the man's present age (in years)?
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