Question

answer with solution​

Answer 1

(A + B)’s 1 day’s work = 1/18

(B + C)’s 1 day’s work = 1/24

(C + A)’s 1 day’s work = 1/36

On adding,

2(A + B + C)’s 1 day’s work = 1/18+1/24+ 1/26 = 4+3+2/72= 1/8

∴ (A + B + C)’s 1 day’s work = 1/16

∴ A, B and C together will complete the work in 16 days.