Answer / guest

7 1/2 hrs

Answer / mv jaysheelan

(30Men x 20days x 9hrs)/(40Men) = 135 hrs per day. Which
is impossible. So, the answer is none.

Since the question is vague, if you don't answer this
question you may be given mark for this question.

The question should have been

1. How many days 40 men working 9 hrs a day will take to
complete the work.
Answer: (30Men x 20days x 9hrs)/(40Men x 9 hrs) = 15days

2. How many hours a day should 40 men work for 20days will
take to complete the work.
Answer: (30hrs x 20day x 9hrs)/(40Men x 20days)=6 3/4 hrs

Answer / venkatesh prabhu.g

30*20*9=40*20*x
(3*9)\4=x
6.7hrs

Answer / dhanaraj

days is eqaul....
so calculte power and time..
power 30 hour 9
power 40 hour x
40x=30*9
x=270/40
x=6.75
x=6 3/4

Answer / herry

27/4 hours Per Day Is Foll and Final Answer

Answer / vishal pitaliya

30*20*9=40*20*x

x= (30*20*9)/(40*20)

x= 27/4

x=6 3/4 hrs answer

Answer / vidya

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

Answer / suratnarayan tripathi

30*20*9=40*20*x
600*9=800*x
5400=800*x
x=5400/800
x=54/8
x=27/4 Hours
x=6.75 hours

It means
x=7 hour and 15 minutes

Answer / sumit sourabh

‎40 men work 6 hours 45 minutes a day for 20 days to complete the job...........

AS WE SEE
(30*20*9)=(40*20*H)
5400=800 * H
H = 6.75 HOURS
I.E; 6 HOURS 45 MINUTES IS THE WORK DONE PER DAY

Answer / baddy

equation given: 30 x 9 = 40 x X
=> X = 30 x 9 /40
=270/40
= 6.75
= 6 hrs and 45 mins

So,Ans is
6.75 hrs

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