# CAT Quantitative Aptitude Questions | CAT Time and Work questions

###### CAT Questions | Time and work | Pipes and Cisterns
CAT Questions

The question is from Pipes and Cisterns. Three pipes and the time taken to fill the tank by them is given and we need to find out "t". If you had three pipes and wanted to keep them open for different stretches of time, no one can stop you from doing that. Mathematicians are creatures of habit.

Question 2: Pipe A, B and C are kept open and together fill a tank in t minutes. Pipe A is kept open throughout, pipe B is kept open for the first 10 minutes and then closed. Two minutes after pipe B is closed, pipe C is opened and is kept open till the tank is full. Each pipe fills an equal share of the tank. Furthermore, it is known that if pipe A and B are kept open continuously, the tank would be filled completely in t minutes. How long will it take C alone to fill the tank ?

1. 18
2. 36
3. 27
4. 24