2 Questions of Time and Work Video Lecture 30th December 2014

Question 1. Two pipes P & Q can fill a cistern in 12 and 15 minutes respectively. If both are opened together and at the end of 3 minutes, the pipe P is closed, how much longer will the cistern take to fill ?

1. 5 minutes
2. 17/2 minutes
3. 33/4 minutes
4. 35/4 minutes

Question 2. A can do a piece of work in 12 days while B alone can do it in 15 days. With the help of C they can finish it in 5 days. If they are paid Rs. 960 for the whole work. How much money A gets ?

1. 480
2. 240
3. 320
4. 400