90 men are enagged to do a piece of work in 40 days but it is found that in 25 days, 2/3 work is completed. How many men should be allowed to go off so that the work may be finished in time ?
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Total quantum of work planned = 90 * 40 = 3600 units.
Work completed in 25 days = 90 * 25 = 2250 units
Balance work remaining = 2250/2 * 1= 1125 units.
No.of days remaining = 15
No.of men required to finish = 1125/15 = 75
Hence, 15 men can be allowed to go.
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