Question

A and B can do a piece of work in 6 days and A alone can do it in 9days. The time taken by B alone to do the work is

Answer 1

Answer:

18 days

Step-by-step explanation:

A and B can do a work in 6 days so 1/6 work in one day.

A can do it in 9 days so 1/9 work in one day.

So, B can do the work in (the total no. of days A and B can complete the work - A's work) 1/6 - 1/9= 1/18

So, B can complete the work in 18 days.