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1. If a man was r years old s years ago, how many years old will he be t years from now?
- A. rst
- B. rst
- C. rst
- D. rst
Answer: Option C
Explanation:
a man was r years old s years ago,so his present age is = r + s
after t years his age will be = r + s + t
ans: r + s + t
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