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if 5 men take an hour to dig a ditch, then how long should 12 men take a dig to ditch of the same type?
25 min
30 min
28 min
20 min
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- 25 min
if 5 men take an hour to dig a ditch, then
12 men will take 5*60/12 = 25 mins to dig a ditch of the same type. - 11 years agoHelpfull: Yes(27) No(1)
- 25 minutes
Formula used= (man*day*hour)/work=(man*day*hour)/work as work is same so
5*60=12*time =>time=25 min - 11 years agoHelpfull: Yes(11) No(0)
- M1H1=M2H2
5*60=12*H2
H2=25 min ; - 10 years agoHelpfull: Yes(7) No(1)
- by chain rule
12:5::60:x
12x=5*60
x=25 min - 11 years agoHelpfull: Yes(3) No(0)
- work done by one men for one min = (1/60*5)
12 men can do in one min = 1/25
so 12 men will take 25 min to complete - 11 years agoHelpfull: Yes(3) No(1)
- 25 min
if 5 men take an hour to dig a ditch, then
12 men will take 5*60/12 = 25 mins to dig a ditch - 11 years agoHelpfull: Yes(2) No(0)
- 5 ----------------- 1hr =60mins
12 men ----------5*60/12 = 25 mins... - 10 years agoHelpfull: Yes(2) No(0)
- 5 men=1 hr =60 min
1 man=5*60 min
so 12 men=5*60/12=25 min ans - 10 years agoHelpfull: Yes(2) No(0)
- 25 mins 5men = 1 hr ,1 men -5*1=5 hrs
12 men-5/12*60=25 mins - 10 years agoHelpfull: Yes(0) No(0)
- 25 days
5m=1h
1m=5x60min
12m =300/12
=25
- 9 years agoHelpfull: Yes(0) No(0)
- 5 men-1hr(60 min)
12men -?((5*60)/12)=25min - 9 years agoHelpfull: Yes(0) No(0)
- 5 men takes 60 minutes.
1 man takes 60*5=300 minutes.
therefore,
12 men takes 300/12=25 minutes. - 9 years agoHelpfull: Yes(0) No(0)
- 25 minute
5*60min=300
300/12=25min - 9 years agoHelpfull: Yes(0) No(0)
- 25minz
1 hour=60min
5*60=12*x
x=5*60/12
x=25minz
- 9 years agoHelpfull: Yes(0) No(0)
- 5*60=300 menminutes( it is for 1 men to dig a ditch)
300/12=25 minutes (it is for twelve mens to dig a ditch)
answer is 25 minutes...
- 8 years agoHelpfull: Yes(0) No(0)
- 60*5/12=25
- 7 years agoHelpfull: Yes(0) No(1)
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