SOLUTION: Hi, Thanks Sonia

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Question 591084: Hi,

Thanks
Sonia

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
15 labourers can lay 85 metres of cable in 10 days. How long will it take
a) 12 labourers to ly 85 metres of cable?
b) 8 labourers to lay 100 metres of cable?
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15 labourers can lay 85 metres of cable in 10 days.
85 metres = 15*10 man-days = 150 man-days
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a) 12 labourers to ly 85 metres of cable?
150 man-days/12 men = 12.5 days
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b) 8 labourers to lay 100 metres of cable?
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= (100/85)*(12/8) = 1200/340 days
=~ 35.29 days