Two taps A and B can fill a tank in 5 hours and 20 hours respectively . If both the taps are open then due to leakage , it took 30 minutes more to fill the tank . If the tank is full , how long will it take for the leakage alone to empty the tank ?
Solution
Correct Answer: Option D
Let the speed of car be x kmph.
Therefore,
the speed of train = 1.5x kmph
Distance traveled by train and car is same. Time difference is 12.5 minutes.
(75/x) - (75/1.5x) = (125/10x60)
x = 120
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