Question

20 men finish a work 7 per hour a day by 10 days how many days 15 men finish a work done by 8 per hour a day

Answer 1

Step-by-step explanation:

20 men working 7 hours a day can complete the work in 10 days 15 men working 1 hour a day can complete the work in (10 x 7) days (Less hours ⇒ More days)

1 man working 1 hour a day can complete the work in ( 10 x 7 x 20) days (Less men ⇒ More days)

1 man working 8 hours a day can complete the work in =

(10×7×20)

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8×15

Days (More men ⇒ Less days)

(Less men ⇒ More days) = 35/3 days = 11⅔days.

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