SOLUTION: Many romy can climb a coconut tree at the rate of 10ft. Per minute and return at 20ft. Per minute. If it took him 3 minutes to climb and return. What is the height of the coconut?

Question 1100003: Many romy can climb a coconut tree at the rate of 10ft. Per minute and return at 20ft. Per minute. If it took him 3 minutes to climb and return. What is the height of the coconut?

Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Many romy can climb a coconut tree at the rate of 10ft. Per minute and return at 20ft. Per minute. If it took him 3 minutes to climb and return. What is the height of the coconut?
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The average speed of a round trip is
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2*10*20/(10+20) = 400/30 = 40/3 ft/min
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3 mins * 40/3 ft/min = 40 feet round trip.
--> 20 feet to the coconut.
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Check:
20/10 + 20/20 = 3 minutes.
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PS Use caution when putting the lime in the coconut.
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