The climb from foot to top of a hill is 800 meters , Jack can climb at 16 meters per minute and rest for two minutes or 20 meters per 2 minutes and rest for one minute. Paul can climb at 10 meters per one minute and rest for one minute or 16 meters per minute and rest for 2 minutes . If it take to reach the top in exactly two hours. what is the maximum number of rests that he can take ?

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Solution

The correct option is C 40
Total distance = 800 m
For Paul,
16 m per minute needs = 800/16 = 50 min to climb
10 m per minute needs = 800/10 = 80 min to climb
He takes 2 hours = 120 min maximum
So, he can take rest = 120 - 80 = 40 minutes or 40 times.

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The correct option is C 40Total distance = 800 mFor Paul,16 m per minute needs = 800/16 = 50 min to climb10 m per minute needs = 800/10 = 80 min to climbHe takes 2 hours = 120 min maximumSo, he can take rest = 120 - 80 = 40 minutes or 40 times.

The correct option is C 40
Total distance = 800 m
For Paul,
16 m per minute needs = 800/16 = 50 min to climb
10 m per minute needs = 800/10 = 80 min to climb
He takes 2 hours = 120 min maximum
So, he can take rest = 120 - 80 = 40 minutes or 40 times.