TS ICET 2015 Question Paper with Solutions for online practice

Question : 106 of 200

Marks: +1, -0

Pipes A and B can fill a tank in 9 minutes and 12 minutes respectively. A is opened and after sometime B is opened; and the tank is full in 4 minutes. The time difference (in minutes) between the opening of A and B is

4
3
2
1 $1/2$

Validate

Solution:

Let the time difference be t minutes.

∴{t+4}/9=4/12=1⇒t+4=2/3×9⇒t=2

Go to Question:

Prev Question

Next Question