SOLUTION: Ken can climb a coconut tree at the rate of 10 ft. per minute and return at 20 ft. per minute. If it took him 3 minutes to climb and return, what is the height of the coconut tree

Question 448913: Ken can climb a coconut tree at the rate of 10 ft. per minute and return at 20 ft. per
minute. If it took him 3 minutes to climb and return, what is the height of the coconut tree?
Answer by htmentor(1343) (Show Source): You can put this solution on YOUR website!
Given: total time = 3 min.
Let h = the height of the tree
Since time = distance/rate, we can write the following equation for the total
time up and down the tree:
h/10 + h/20 = 3
Solve for h:
(2h+h)/20 = 3
3h = 60
h = 20
Therefore, the height of the tree = 20 ft.
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