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There are two taps P and Q that can fill a tank in 12 and 24 minutes respectively. Both of them are opened together and after 4 minutes Q is closed. How long does it take for P alone to fill the tank?
  • a)
    6 minutes
  • b)
    12 minutes
  • c)
    15 minutes
  • d)
    18 minutes
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
There are two taps P and Q that can fill a tank in 12 and 24 minutes ...
Part of a tank filled in 1 Minute by tank P = 1/12
Part of a tank filled in 1 Minute by tank Q = 1/24
Part of tank Filled by P and Q in 4 minutes = 4 x (1/12 + 1/24) = 4 x 3/24 = 1/2
Remaining part = 1 - 1/2 = ½
Equating Time and part filled, = 1/12 x 2/1 = 1/x
X = 6 minutes
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There are two taps P and Q that can fill a tank in 12 and 24 minutes respectively. Both of them are opened together and after 4 minutes Q is closed. How long does it take for P alone to fill the tank?a)6 minutesb)12 minutesc)15 minutesd)18 minutesCorrect answer is option 'A'. Can you explain this answer?
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There are two taps P and Q that can fill a tank in 12 and 24 minutes respectively. Both of them are opened together and after 4 minutes Q is closed. How long does it take for P alone to fill the tank?a)6 minutesb)12 minutesc)15 minutesd)18 minutesCorrect answer is option 'A'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about There are two taps P and Q that can fill a tank in 12 and 24 minutes respectively. Both of them are opened together and after 4 minutes Q is closed. How long does it take for P alone to fill the tank?a)6 minutesb)12 minutesc)15 minutesd)18 minutesCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for There are two taps P and Q that can fill a tank in 12 and 24 minutes respectively. Both of them are opened together and after 4 minutes Q is closed. How long does it take for P alone to fill the tank?a)6 minutesb)12 minutesc)15 minutesd)18 minutesCorrect answer is option 'A'. Can you explain this answer?.
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