Question

A and B can do a piece of work in 18 days B and C can do in 24 days and a and c can do in 36 days then what time can they do it all working together​

Answer 1

Answer is 16 days

I guess

Right answer please leave thanks

Answer 2

Answer:

(A+B) 's 1days work=1/18..(i)

(B+C)'s 1days work=1/24..(ii)

(A+C)'s 1 days work=1/36..(iii)

Add(i),(ii)&(iii),

2(A+B+C)' s 1days work=

1/18+1/24+1/36= 1/8

(A+B+C) 1days work= 1/8÷2=1/16