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A tank can be filled by a pipe in 6 hours. How long will it take to fill the tan

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Question: A tank can be filled by a pipe in 6 hours. How long will it take to fill the tank if two such pipes are used?

Options:

  1. 2 hours
  2. 3 hours
  3. 4 hours
  4. 5 hours

Correct Answer: 3 hours

Solution: 

One pipe fills in 6 hours, so two pipes will fill in 6/2 = 3 hours.

A tank can be filled by a pipe in 6 hours. How long will it take to fill the tan

Practice Questions

Q1
A tank can be filled by a pipe in 6 hours. How long will it take to fill the tank if two such pipes are used?
  1. 2 hours
  2. 3 hours
  3. 4 hours
  4. 5 hours

Questions & Step-by-Step Solutions

A tank can be filled by a pipe in 6 hours. How long will it take to fill the tank if two such pipes are used?
  • Step 1: Understand that one pipe can fill the tank in 6 hours.
  • Step 2: If you use two pipes, they will work together to fill the tank faster.
  • Step 3: To find out how much faster, divide the time it takes for one pipe by the number of pipes: 6 hours ÷ 2 pipes.
  • Step 4: Calculate 6 ÷ 2, which equals 3 hours.
  • Step 5: Conclude that using two pipes will fill the tank in 3 hours.
  • Rate of Work – Understanding how the rate of work changes when multiple identical sources are used.
  • Inverse Proportionality – Recognizing that the time taken to complete a task is inversely proportional to the number of workers (or pipes) used.
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