Question

A can do a piece of work in 9 days and B can do it in 6 days. With the help of C, they finish the work in 3 days. Then in how many days C alone can do the work?

answer plzz​

Answer 1

Answer:

18 days

Step-by-step explanation:

A = 9days = 1/9

B = 6days = 1/6

A+B+C = 1/3

(1/9)+(1/6)+(1/C) = 1/3

1/C = (1/3) - (1/9) - (1/6)

1/C = 1/18

C alone do a work in 18 days