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Thirty men take 20 days to complete a job working 9 hours a
day. How many hour a day should 40 men work to complete the job?

(a) 8 hrs
(b) 7 1/2 hrs
(c) 7 hrs
(d) 9 hrs

Answer Posted / vidya

In both cases days are same
so
m1*ti=m2*t2
30*9=40*t2
t2=270/40=71/2

Is This Answer Correct ?    213 Yes 192 No



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