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A tank can be filled using pipe A and emptied using pipe B. Pipe B can empty the tank in 12 hrs. When both the pipes are simultaneously opened, the tank is half full in 2 hrs. In how much time can pipe A fill the tank alone?
  • a)
    2 hrs.
  • b)
    3 hrs.
  • c)
    4 hrs.
  • d)
    6 hrs.
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A tank can be filled using pipe A and emptied using pipe B. Pipe B can...
Let pipe A can fill the tank in ‘x’ hours
A’s 1 hr. work = 1/x
B’s 1 hr. work = 1/12
When both are opened simultaneously, work done in 2 hours,
⇒ (1/x – 1/12) × 2 = 1/2
⇒ (1/x – 1/12) = 1/4
⇒ 1/x = 1/4 + 1/12
⇒ 1/x = 1/3
⇒ x = 3 hrs.
∴ Pipe A can fill the tank alone in 3 hours
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A tank can be filled using pipe A and emptied using pipe B. Pipe B can empty the tank in 12 hrs. When both the pipes are simultaneously opened, the tank is half full in 2 hrs. In how much time can pipe A fill the tank alone?a)2 hrs.b)3 hrs.c)4 hrs.d)6 hrs.Correct answer is option 'B'. Can you explain this answer?
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A tank can be filled using pipe A and emptied using pipe B. Pipe B can empty the tank in 12 hrs. When both the pipes are simultaneously opened, the tank is half full in 2 hrs. In how much time can pipe A fill the tank alone?a)2 hrs.b)3 hrs.c)4 hrs.d)6 hrs.Correct answer is option 'B'. 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 A tank can be filled using pipe A and emptied using pipe B. Pipe B can empty the tank in 12 hrs. When both the pipes are simultaneously opened, the tank is half full in 2 hrs. In how much time can pipe A fill the tank alone?a)2 hrs.b)3 hrs.c)4 hrs.d)6 hrs.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A tank can be filled using pipe A and emptied using pipe B. Pipe B can empty the tank in 12 hrs. When both the pipes are simultaneously opened, the tank is half full in 2 hrs. In how much time can pipe A fill the tank alone?a)2 hrs.b)3 hrs.c)4 hrs.d)6 hrs.Correct answer is option 'B'. Can you explain this answer?.
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