Question
Mathematics Question on Time and Work
Pipes A and B can fill a tank in 25 hours and 10 hours respectively. Pipe A was opened and after half an hour pipe B was also opened. In how much time the tank got filled?
A
7 hours 10 minutes
B
7 hours 15 minutes
C
7 hours 30 minutes
D
7 hours 45 minutes
Answer
7 hours 30 minutes
Explanation
Solution
The correct option is (C): 7 hours 30 minutes.