UPSC CAPF AC 2017 Paper

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Question : 70 of 125
 
Marks: +1, -0
Two men set out at the same time to walk towards each other from points A and B; 72 km apart. The first man walks at the speed of 4 km/h while the second walks 2 km in the first hour, 2
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km in the second hour, 3 km in the 2 third hour, and so on. The two men will meet
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