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Q:

A person, who can walk down a hill at the rate of $$4{1\over2}$$km/hour and up the hill at the rate of 3 km/hour, ascends and comes down to his starting point in 5 hours. How far did he ascend?

  • 1
    15 km
  • 2
    9 km
  • 3
    13.5 km
  • 4
    3 km
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Answer : 2. "9 km"

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