5 men take 20 days to complete a work working 8 hours a day. In how many days can 8 men do the same work, working 7 hours a day?
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Answer:
10 days
Explanation:
5 men working 8hrs. took =20 days
1 man working 1 hr. will take= 20*5*8 days
Then, 8 men working 10 hrs. will take= ( 20*5*8 )/8∗10=10days.
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