Question

a and b can do a piece of work 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 A,B,C finish it if they all work together​

Answer 1

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Answer 2

Answer:

16 days

Step-by-step explanation:

(A + B)'s 1-day work = (1/18)

(B + C)'s 1-day work = (1/24)

(C + A)'s 1-day work = (1/36).

On adding, we get

2(A + B + C)'s 1-day work = (1/18) + (1/24) + (1/36)

                                         = (9/72)

                                         = (1/8).

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

Thus, A, B and C together can finish the work in 16 days.

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