if 30 men completes a job in 15 days working 9 hrs per
day..how much hours per day should 40 men work ??
a ) 35 b)7 1/2 c)30 d) none

Answer Posted / buddhika

convert days in hours so 15*9=135 hours
30 men complete a job in = 135 hours
time for 1 man to complete the same job = 135*30
time for 40 men to do the same job = 135*30/40

then the ans = 101.25

but ask no of hr per day then = 101.25/15

the the ans = 6.75

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