A piece of work can be finished in 30 days working 8 hours a day in how many days would the work be finished working in 6 hours a day?
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Answered by
3
Answer:
25 men can do a work (P) in 6 days working 8 hours a day. So we have the equation for the amount of production:
25 men * 6 days * 8hrs/day = P.
Solving the first equation for P:
P = 1200 man-hours
How many hours a day must 30 men have to work in order to finish a work twice as great in 8 days? This gives us another equation:
x * 30 men * 8 days = 2P
Solving the second equation for P:
P = .5 * x * 30 men * 8 days
P = 120x man-days
Now using the two equations to solve for x:
120x man-days = 1200 man-hours
120x man-days / 120 man-days = 1200 man-hours / 120 man-days
x = 10 hrs/day
Answered by
3
Answer:
the answer is 10 hours per da
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