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# A husband and wife, started painting their house, but husband left pai

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Director
Joined: 17 Dec 2012
Posts: 622
Location: India
Re: A husband and wife, started painting their house, but husband left pai  [#permalink]

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06 Jun 2017, 16:45
johnnybravo86 wrote:
A husband and wife, started painting their house, but husband left painting 5 days before the completion of the work. How many days will it take to complete the work, which the husband alone would have completed in 20 days and wife in 15 days?

A. 40/7
B. 50/7
C. 75/7
D. 55/7

1.( time worked by husband )/ (time taken by husband working alone) + ( time worked by wife )/ (time taken by wife working alone) =1
2. Let x be the total number of days taken.
3. (x-5)/20 +x/15=1.
So x=75/7.
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Srinivasan Vaidyaraman
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Re: A husband and wife, started painting their house, but husband left pai  [#permalink]

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02 Dec 2019, 11:45
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: A husband and wife, started painting their house, but husband left pai   [#permalink] 02 Dec 2019, 11:45

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