A certain number of men complete a piece of work in sixty days. If there were 8 men more, the work could be finished in 10 days less. How many men were originally there ?
Originally let there be x men.
More men, Less days
(x + 8) : x ? 60:50
So, x + 8 / x = 60/50 or x = 40.
Hence, there were 40 men, originally.
10x = 400
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