A and B can finish a piece of work in 30 days, B and C in 40 days while C and A in 60 days. A, B, C together will finish the work in how many days?

Asked by rhinithaa | 31st Jul, 2010, 03:42: PM

Expert Answer:

Dear Student,
 
 
(A + B)'s one day's work = 1/30
(B + C)'s one day's work = 1/40
(C + A)'s one day's work = 1/60
 
Adding we get
 
2(A + B + C)'s one day's work =
 
 
(A + B + C)'s one day's work = 3/80
 
So together A, B and C can do the work in 80/3 days
 
 
Regards,
 
Team Topper Learning
 

Answered by  | 31st Jul, 2010, 07:18: PM

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