Question

Madhu and Meena can do a piece of work in 9 hours. Meena and Mamta can do that piece of work in 18 hours. In how many hours will they will finish the work together and separately?

Answer 1

Answer: This question is incomplete

Together they can finish it in 6 hr

Step-by-step explanation:  

Let M1 , M2 & M3

M1 + M2= 1/9 per hr

M2 + M3=1/18 per hr

M1+M2+M3=1/9+1/18=1/6

ie. 6 hours