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.Management Sciences
A. 4 1/3 hrs
B. 7 hrs
C. 8 hrs
D. 14 hrs
Explanation:
Work done by the tank in 1 hour = (1/2 – 1/3) = 1/14 Leak will empty the tank in 14 hrs.
Related Mcqs:
- A cistern has a leak which would empty the cistern in 20 minutes. A tap is turned on which admits 4 liters a minute into the cistern, and it is emptied in 24 minutes. How many liters does the cistern hold?
- A. 480 liters B. 600 liters C. 720 liters D. 800 liters...
- Two pipes can separately fill a tank in 20 and 30 hours respectively. Both the pipes are opened to fill the tank but when the tank is full, a leak develops in the tank through which one-third of water supplied by both the pipes goes out. What is the total time taken to fill the tank?
- A. 18 hrs B. 16 hrs C. 15 hrs D. 12 hrs...
- A tank is filled in eight hours by three pipes A, B and C. Pipe A is twice as fast as pipe B, and B is twice as fast as C. How much time will pipe B alone take to fill the tank?
- A. 24 hours B. 28 hours C. 32 hours D. 36 hours...
- Two pipes can fill a tank in 20 and 24 minutes respectively and a waste pipe can empty 3 gallons per minute. All the three pipes working together can fill the tank in 15 minutes. The capacity of the tank is?
- A. 60 gallons B. 100 gallons C. 120 gallons D. 180 gallons...
- Three taps A, B and C can fill a tank in 12, 15 and 20 hours respectively. If A is open all the time and B and C are open for one hour each alternately, the tank will be full in_________?
- A. 6 hours B. 6 2/3 hours C. 7 hours D. 7 1/2 hours...
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