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?

8 men working for 9 hours a day complete a piece of work in 20 days. I

1.	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.	21 days
B.	$$ {20}{3 over 5} days $$
C.	$$ {20}{1 over 2} days $$
D.	$$ {20}{4 over 7} days $$
Answer» E.

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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?

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