If 20 men working 8 hours per day can complete a piece of work in 21 days How many hours per day mus...........

Quantitative Aptitude (CGL) Time and work

If 20 men working 8 hours per day can complete a piece of work in 21 days. How many hours per day must 48 men work to complete the same job in 7 days?

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Explanation:

Suppose the hours to complete the same job by 48 men in 7 days = t1;
Hence, 20 x 8 x 21 = 48 x t1 x 7;
t1 = 10 hours.

By: MIRZA SADDAM HUSSAIN

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If 20 men working 8 hours per day can complete a piece of work in 21 days How many hours per day mus...........

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