Q. A water tank has two holes. The 1st hole alone makes the tank empty in 3 min and 2nd hole alone makes the tank empty in 5 min. If water leaks out at a constant rate, how long in minutes does it take if both the holes together empty the tank?
A) 23/8
B) 7/8
C) 15/8
D) 13/8
✔ Correct Answer: 15/8
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