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 Study the following graph carefully to answer the given questions
Time taken by the pipes to fill a tank/cistern (hours/minutes)
Two pipes E and F are opened simultaneously and it is found that due to leakage in the bottom of the tank it took 48 minutes excess time to fill the cistern. When is the cistern full, in what time will the leak empty it?
  • a)
    72 hours
  • b)
    62 hours
  • c)
    64 hours
  • d)
    84 hours
  • e)
    None of the Above
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Study the following graph carefully to answer the given questionsTime ...
Work done by the two pipes in 1 hour = (1/12)+(1/18) = (15/108).
Time taken by these pipes to fill the tank = (108/15)hrs = 7 hours 12 min.
Due to leakage, time taken = 7 hours 12 min + 48 min = 8 hours
Work done by two pipes and leak in 1 hour = 1/8.
Work done by the leak in 1 hour =(15/108)-(1/8)=(1/72).
Leak will empty the full cistern in 72 hours.
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Study the following graph carefully to answer the given questionsTime takenby the pipes to fill a tank/cistern (hours/minutes)Two pipes E and F are opened simultaneously and it is found that due to leakage in the bottom of the tank it took 48 minutes excess time to fill the cistern. When is the cistern full, in what time will the leak empty it?a)72hoursb)62 hoursc)64 hoursd)84 hourse)None of the AboveCorrect answer is option 'A'. Can you explain this answer?
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