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36 men dig a trench 200 meters long, 3 meters wide and 2

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36 men dig a trench 200 meters long, 3 meters wide and 2 [#permalink] New post 14 Oct 2008, 09:33
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36 men dig a trench 200 meters long, 3 meters wide and 2 meters deep in 6 days, working 10 hours a day. In how many days, working 8 hours a day will 10 men dig a trench 100 meters long, 4 meters wide and 3 meters deep?

A. 20 days

B. 27 days

C. 15 days

D. 54 days

E. 18 days
Director
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Re: PS- Problem with lot of variables... [#permalink] New post 14 Oct 2008, 10:43
rnemani wrote:
36 men dig a trench 200 meters long, 3 meters wide and 2 meters deep in 6 days, working 10 hours a day. In how many days, working 8 hours a day will 10 men dig a trench 100 meters long, 4 meters wide and 3 meters deep?

A. 20 days

B. 27 days

C. 15 days

D. 54 days

E. 18 days


notice that the amount of work is the same: 200*3*2 = 100*4*3

Now 10hr*36men*6days = 8hrs*10men*xdays => x = 27 -> B
Re: PS- Problem with lot of variables...   [#permalink] 14 Oct 2008, 10:43
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36 men dig a trench 200 meters long, 3 meters wide and 2

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