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A monkey tries to ascend a greased pole which is 14 m high. He ascends
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06 Mar 2021, 05:15
06 Mar 2021, 05:15
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Question Stats:
40% (01:41) correct
60% (01:07) wrong based on 10 sessions
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A monkey tries to ascend a greased pole which is 14m high. He ascends 2m in first 2 minutes and slips 1m in every alternate minute. If he continues this way, how long it would take him to reach the top?
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38 minutes
Retired Moderator
Joined: 16 Apr 2020
Status:Founder & Quant Trainer
Affiliations: Prepster Education
Posts: 1546
Given Kudos: 172
Location: India
WE:Education (Education)
Re: A monkey tries to ascend a greased pole which is 14 m high. He ascends
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06 Mar 2021, 23:45
06 Mar 2021, 23:45
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OA Explanation
He climbs 2m in 2 minutes and then slips 1m next minute, so he climbs just 1m in 3 mins.
Now, 14m = 12m + 2m
He will climb 12m in 12 x 3 = 36 minutes
The next 2m he can climb in 2 minutes
So, the total time required = 36 + 3 = 38 minutes
He climbs 2m in 2 minutes and then slips 1m next minute, so he climbs just 1m in 3 mins.
Now, 14m = 12m + 2m
He will climb 12m in 12 x 3 = 36 minutes
The next 2m he can climb in 2 minutes
So, the total time required = 36 + 3 = 38 minutes
General Discussion
A monkey tries to ascend a greased pole which is 14 m high. He ascends
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Updated on: 07 Mar 2021, 03:45
Updated on: 07 Mar 2021, 03:45
1
The monkey ascend 2 m in 2minutes and then slips down in the 3rd minute.
Every 3 minutes he gains 1 m.
This happens when he reaches 12 m, which takes him 36 minutes.
In the 37th and minute, he climbs up the last 2 m.
Total time is therefore 38 minutes.
Arun Kumar
Every 3 minutes he gains 1 m.
This happens when he reaches 12 m, which takes him 36 minutes.
In the 37th and minute, he climbs up the last 2 m.
Total time is therefore 38 minutes.
Arun Kumar
Originally posted by kvarunkumar1975 on 06 Mar 2021, 05:28.
Last edited by kvarunkumar1975 on 07 Mar 2021, 03:45, edited 1 time in total.
Last edited by kvarunkumar1975 on 07 Mar 2021, 03:45, edited 1 time in total.
