Question

A and b can do a piece of work in 18 days; band c can do it in 24 days a and c can do it in 36 days. in how many days will a, band c finish it together and separately

Answer 1

Answer:

16 days

Step-by-step explanation:

(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 + 1/36 = 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.