170
Question
A certain number of men can finish a price of work in 100 days .If there were 10 men less ,it would take them 10 days more to finish the work. How many men were there originally?
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Solution
Originally let there be x men.
Less men, More days (Indirect Proportion)
Therefore, (x-10) : x = 100 :110
=> (x - 10) * 110 = x * 100 => x= 110
Less men, More days (Indirect Proportion)
Therefore, (x-10) : x = 100 :110
=> (x - 10) * 110 = x * 100 => x= 110
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