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Question: a man,a women and a child can do a piece of work in 6 days,man can do it in 14 days,women can do it 16 days,and in how many days child can do the same work?
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| July 07, 2008 04:07:20 |
#3 |
| su2008 |
Member Since: July 2008 Total Comments: 3 |
RE: a man,a women and a child can do a piece of work in 6 days,man can do it in 14 days,women can do it 16 days,and in how many days child can do the same work?
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mans work+women+child=1/6
mans 1 days work = 1/14
womens 1 days work =1/16
child=?
1/6 = 1/4 + 1/16 + child
1/6 = 5/16 + c
1/6 - 5/16 = c
7/48=c
48/7 days or 6.5 days... |
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