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15 men take 20 days to complete a job working 8 hours a day. The number of hours a day should 20

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15 men take 20 days to complete a job working 8 hours a day. The number of hours a day should 20 men take to complete the job in 12 days: 

(a) 5 hours 

(b) 10 hours 

(c) 15 hours 

(d) 18 hours

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1 Answer

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Best answer

Correct option (b) 10 hours

Explanation: 

Let’H’ no of hours taken

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