A tank has two leakages. The first leakage alone can empty the tank in 9 minutes and the second alone would have done it in 6 minutes. If water leaks out at a constant rate, how long does it take both the leakage together to empty the tank?
A.3.1 min
B.3.6 min
Feedback1 minute's work of both the leakage = 1/9+1/6 = 5/18 So, both the leakage will empty the tank in 18/5 min
C.3.5 min
D.4 min
These questions are from this test. Would you like to take a practice test?