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A monkey can climb 6 meters in a minute on a circular pole, which is 21 meters high. But it slips 3 meters in the next one minute. How long will it take for the monkey to reach the top of the pole?

A monkey can climb 6 meters in a minute on a circular pole, which is 21 meters high. But it slips 3 meters in the next one minute. How long will it take for the monkey to reach the top of the pole? Correct Answer 11 minutes

Given:

The height of a pole = 21 meters

A monkey covers distance in 1 minute = 6 meters 

Calculation:

Net distance travelled by monkey in 2 min = 3 meters

In 10 min. distance travelled (climbed) = 15 meters

As, it is given in the question that in first minute it climbed 6 meters and in other minute it slips down 3 meters 

And this happens alternately.

So monkey will travel remaining 6 meters in next minute.

∴ Total time taken is (10 + 1) = 11 minute. 

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