Question

. A and B can do a piece of work in 18 days; B and C can do it in 24 days while C and A can
finish it in 36 days. In how many days can A, B, C finish it, if they all work together?
Aand Bando
даа​

Answer 1

(A+B)'s 1 day work = =1/18

(B+C)'s 1 day work = =1/24

(C+A)'s 1 day work = =1/36

2 (A+B+C)'s 1 day's work = 1/8

Therefore, (A+B+C)'s 1 day's work = 1/16

Hence time taken by them to do this work together = 16 days

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