A monkey ascends a greased pole 20 metres high.

A monkey ascends a greased pole 20 metres high. He ascends 2 metres in first minute and slips down 1 metre in the alternate minute. In which minute, he reaches the top ?

Quiz

Answer/Solution

37th

Steps/Work

In 2 minutes, he ascends = 1 metre
∴ 18 metres, he ascends in 36 minutes.
∴ He reaches the top in 37th minute.
Answer E

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A monkey ascends a greased pole metres high. He ascends metres in first minute and slips down metre in the alternate minute. In which minute, he reaches the top?

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