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Two pipes A and B can fill a tank in 15 minutes and 40 minutes respectively. Both the pipes are opened together but after 4 minutes, pipe A is turned off. What is the total time required to fill the tank?
- a)10 min 10 sec
- b)25 min 20 sec
- c)29 min 20 sec
- d)20 min 10 sec
Correct answer is option 'C'. Can you explain this answer?
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Problem Statement: Two pipes A and B can fill a tank in 15 minutes and 40 minutes respectively. Both the pipes are opened together but after 4 minutes, pipe A is turned off. What is the total time required to fill the tank?
Solution:
Let's assume the capacity of the tank is 120 liters (LCM of 15 and 40).
Therefore, the rate of pipe A = 120/15 = 8 liters/min
The rate of pipe B = 120/40 = 3 liters/min
Let's say both pipes are open for 't' minutes.
Therefore, the total amount of water filled in 't' minutes = 8t + 3t = 11t liters
After 4 minutes, only pipe B is working and it fills the remaining (120-44=76) liters of the tank.
Time taken by pipe B to fill 76 liters = 76/3 = 25 min 20 sec
Therefore, the total time taken to fill the tank = 4 + 25 min 20 sec = 29 min 20 sec
Hence, option C is the correct answer.
Solution:
Let's assume the capacity of the tank is 120 liters (LCM of 15 and 40).
Therefore, the rate of pipe A = 120/15 = 8 liters/min
The rate of pipe B = 120/40 = 3 liters/min
Let's say both pipes are open for 't' minutes.
Therefore, the total amount of water filled in 't' minutes = 8t + 3t = 11t liters
After 4 minutes, only pipe B is working and it fills the remaining (120-44=76) liters of the tank.
Time taken by pipe B to fill 76 liters = 76/3 = 25 min 20 sec
Therefore, the total time taken to fill the tank = 4 + 25 min 20 sec = 29 min 20 sec
Hence, option C is the correct answer.
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Two pipes A and B can fill a tank in 15 minutes and 40 minutes respectively. Both the pipes are opened together but after 4 minutes, pipe A is turned off. What is the total time required to fill the tank?a)10 min 10 secb)25 min 20 secc)29 min 20 secd)20 min 10 secCorrect answer is option 'C'. Can you explain this answer?
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Two pipes A and B can fill a tank in 15 minutes and 40 minutes respectively. Both the pipes are opened together but after 4 minutes, pipe A is turned off. What is the total time required to fill the tank?a)10 min 10 secb)25 min 20 secc)29 min 20 secd)20 min 10 secCorrect answer is option 'C'. Can you explain this answer? for LR 2024 is part of LR preparation. The Question and answers have been prepared according to the LR exam syllabus. Information about Two pipes A and B can fill a tank in 15 minutes and 40 minutes respectively. Both the pipes are opened together but after 4 minutes, pipe A is turned off. What is the total time required to fill the tank?a)10 min 10 secb)25 min 20 secc)29 min 20 secd)20 min 10 secCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for LR 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Two pipes A and B can fill a tank in 15 minutes and 40 minutes respectively. Both the pipes are opened together but after 4 minutes, pipe A is turned off. What is the total time required to fill the tank?a)10 min 10 secb)25 min 20 secc)29 min 20 secd)20 min 10 secCorrect answer is option 'C'. Can you explain this answer?.
Two pipes A and B can fill a tank in 15 minutes and 40 minutes respectively. Both the pipes are opened together but after 4 minutes, pipe A is turned off. What is the total time required to fill the tank?a)10 min 10 secb)25 min 20 secc)29 min 20 secd)20 min 10 secCorrect answer is option 'C'. Can you explain this answer? for LR 2024 is part of LR preparation. The Question and answers have been prepared according to the LR exam syllabus. Information about Two pipes A and B can fill a tank in 15 minutes and 40 minutes respectively. Both the pipes are opened together but after 4 minutes, pipe A is turned off. What is the total time required to fill the tank?a)10 min 10 secb)25 min 20 secc)29 min 20 secd)20 min 10 secCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for LR 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Two pipes A and B can fill a tank in 15 minutes and 40 minutes respectively. Both the pipes are opened together but after 4 minutes, pipe A is turned off. What is the total time required to fill the tank?a)10 min 10 secb)25 min 20 secc)29 min 20 secd)20 min 10 secCorrect answer is option 'C'. Can you explain this answer?.
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Two pipes A and B can fill a tank in 15 minutes and 40 minutes respectively. Both the pipes are opened together but after 4 minutes, pipe A is turned off. What is the total time required to fill the tank?a)10 min 10 secb)25 min 20 secc)29 min 20 secd)20 min 10 secCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for Two pipes A and B can fill a tank in 15 minutes and 40 minutes respectively. Both the pipes are opened together but after 4 minutes, pipe A is turned off. What is the total time required to fill the tank?a)10 min 10 secb)25 min 20 secc)29 min 20 secd)20 min 10 secCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of Two pipes A and B can fill a tank in 15 minutes and 40 minutes respectively. Both the pipes are opened together but after 4 minutes, pipe A is turned off. What is the total time required to fill the tank?a)10 min 10 secb)25 min 20 secc)29 min 20 secd)20 min 10 secCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
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