Question

A can complete a piece of work in 18 days and B can complete the same work in half time taken by A. Then, working together, what part of the same work they can complete in a day?

Options

• `1/6`

• `1/9`

• `2/5`

• `2/9`

Answer 1

`1/6`
Explanation:

A's 1 day's work = `1/18` 

B's 1 day's work = `1/9`

(A+ B)'s 1 day's work = `1/9+1/18=3/18=1/6`