A monkey climbing up a greased pole ascends 12 metres and slips down 5 metres in alternate minutes. If the pole is 63 metres high, how long will it take him to reach the top?

A monkey climbing up a greased pole ascends 12 metres and slips down 5

1.	A monkey climbing up a greased pole ascends 12 metres and slips down 5 metres in alternate minutes. If the pole is 63 metres high, how long will it take him to reach the top?
A.	18 minutes
B.	16 minutes
C.	<table><tr><td rowspan="2">16</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>7</center></td><td rowspan="2">minutes</td></tr><tr><td style="text-align: center;">12</td></tr></table>
D.	18 minutes 20 seconds
Answer» D. 18 minutes 20 seconds

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A monkey climbing up a greased pole ascends 12 metres and slips down 5 metres in alternate minutes. If the pole is 63 metres high, how long will it take him to reach the top?

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