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Numerical Ability
Time and Work
Fifteen men take 10 days to complete a job working 12 hours a day. How many hours a day should 10 men work to complete the job in 20 days?
a>20 days
b>8 days
c>9 days
d>10 days
Read Solution (Total 2)
-
- one man's one day's work=1/15*(10*12)
let hour is x;
so,x=15*(10*12)/20*10=9hr - 12 years agoHelpfull: Yes(2) No(1)
- c) 9 days
work remains constant
t=15*10*12/10*20
t= 9 days - 11 years agoHelpfull: Yes(0) No(2)
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