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Question
A rock climber climbs a hill at the rate of 3 m/s. If he starts climbing from 20 m above the ground surface, how much time will he take to climb the hill which is 200 m high?
A rock climber climbs a hill at the rate of 3 m/s. If he starts climbing from 20 m above the ground surface, how much time will he take to climb the hill which is 200 m high?
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Solution
The correct option is D 60 sec
Rate at which climber climbs the hill = 3 m/s
Total distance to be climbed by the climber = 200 m -20 m = 180 m
Time taken by the climber to climb = 180 m3 m/sec = 60 sec.
Rate at which climber climbs the hill = 3 m/s
Total distance to be climbed by the climber = 200 m -20 m = 180 m
Time taken by the climber to climb = 180 m3 m/sec = 60 sec.