A and B can finish a piece of work in 15 days,B and C in 20 days while C and A in 30 days.How long will each take to finish the work?
Answers
Answered by
1
Answer:
A+B can do a piece of work in 15 days
work done by A and B in 1days =1/15 part of work
B+C can done a work in 20
work done by B and C in 1days =1/20
C+A can do a work in 30 days
work done by C and A in 1 day =1/30
2(a+b+c)
2(1/15+1/20+1/30)
=22/60
so a+ b+c can do work in 60/22 days
Similar questions