Question

A and b working together can finish a piece of work in 6 hours while a alone can do it in 9 Harsh b alone can do it in how many hours??​

Answer 1

Answer:

18 hours

Step-by-step explanation:

A's one hour work=1/9

A+B one hour work=1/6

Therefore 1/9+B's 1 hour work=1/6

B's one hour work=1/6-1/9=1/18

Therefore B alone can finish the work in 18 hours