A can do a piece of work in 12 days . B takes 20 days to finish the same job and A,B,C together can finish the work in 5days . In how much days will C alone comolete the work?
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A=12 days
B=20 days
C=??
A+B+C=5DAYS
SO,ONE DAY WORK OK EACH PEOPLE
1/A+1/B+1/C=1/5
1/12+1/20+1/C=15
1/C=1/5-(1/12-1/20)
=1/5-1/12-1/20
=12-5-3/60=4/60=1/15
1/C=1/15
SO C=15 days answere
B=20 days
C=??
A+B+C=5DAYS
SO,ONE DAY WORK OK EACH PEOPLE
1/A+1/B+1/C=1/5
1/12+1/20+1/C=15
1/C=1/5-(1/12-1/20)
=1/5-1/12-1/20
=12-5-3/60=4/60=1/15
1/C=1/15
SO C=15 days answere
thank u
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