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8 men working for 9 hours a day complete a piece of work in 20 days. In how many days can 7 men working for 10 hours a day complete the same piece of work ? 

(a) 144/7 days 

(b) 143/7 days 

(c) 150/7 days 

(d) 156/7 days

1 Answer

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Best answer

Correct option (a) 144/7 days

Explanation:

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