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# quant Time & work question

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Intern
Joined: 05 Aug 2009
Posts: 2
quant Time & work question [#permalink]

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06 Aug 2009, 00:15
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1) A is twice as good a workman as B and together they finish a piece of work in 14 days. In how many days can A alone finish the work?
a) 11
b) 21
c) 28
d) 42

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Director
Joined: 01 Apr 2008
Posts: 847
Name: Ronak Amin
Schools: IIM Lucknow (IPMX) - Class of 2014
Re: quant Time & work question [#permalink]

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06 Aug 2009, 01:39
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B.

2R + R = 1/14
=> 3R =1/14
=> R = 1/42.

Now we have to find 2R, which is 1/21. So A alone will take 21 days to finish his task.

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This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

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Re: quant Time & work question   [#permalink] 06 Aug 2009, 01:39
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# quant Time & work question

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