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1. In a 100 m race, A covers the distance in 36 seconds and B in 45 seconds. In this race A beats B by :
- A. 20 m
- B. 20 m
- C. 20 m
- D. 20 m
Answer: Option A
Explanation:
Hints: Distance covered by B in 9 sec = (100/45)×9 m = 20 m
A beats B by 20 metres
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