Working 7 hours in a day 4 men can do a piece of work in 8 days Working 8 hours in a day the require...........

Quantitative Aptitude (CGL) Time and work

Working 7 hours in a day, 4 men can do a piece of work in 8 days. Working 8 hours in a day, the required number of men to perform the same work in 4 days will be

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Explanation:

Assume that the number of men required be x.
Now, the work done by 4 men in 8 days working 7 hours per day would be equal to the work done by x men in 4 days working 8 hours per day.
X×4×8 = 4×7×8
X = 7
hence the no. of men required = 7