A and B can do a piece of work in 18 days, B and
C can do it in 24 days. while A and C can do it in 30 days. In how many days can A, B and C finish
it if they all work together? In how many days
will each one of them finish it working alone?
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Step-by-step explanation:
A+B 1 days work 1/18
B+C 1days work 1/24
A+C 1days work 1/30
2A+2B+2C 1 day work (20+15+12)/360 =47/360
A+B+C 1 days work =47/720 => 720/47 days to finish work
A 1daywork = 47/720-1/24 =17/720=> 720/17 days to finish work
Bs 1daywork = 47/720-1/30 = 23/720=>720/23 days to finish work
C 1 day work =47/720-1/18=7/720=> 720/7 days to finish work
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