Question

there is one monkey climbs 3fts and slips down 2fts of a tree in 1 hour. how much time it will take to reach the top of the tree of 20fts height?

Answer 1

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Answer 2

The net displacement in an hour is 1 ft. In 17 hours, the monkey will have climbed 17 feet.

But, in the 18th hours, it will climb 3 feet and reach the top of the pole/tree/whatever, and then slip.

Here, since the objective has been fulfilled, we will not take into account the net displacement.

Hence, the answer is 18 hours.