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A tap can fill a tank in 6 hours. After half the tank is filled then 3 more similar taps are opened. What will be total time taken to fill the tank completely.

  • 2 hours 30 mins
  • 2 hours 45 mins
  • 3 hours 30 mins
  • 3 hours 45 mins
Similar Questions :

1. A cistern can be filled in 9 hours but due to a leak at its bottom it takes 10 hours. If the cistern is full, then the time that the leak will take to make it empty will be ?

  • 20 hours
  • 19 hours
  • 90 hours
  • 80 hours

2. A tank can be filled by two pipes A and B in 60 minutes and 40 minutes respectively. How many minutes will it take to fill the tank from empty state if B is used for the first half time and then A and B fill it together for the other half.

  • 15 mins
  • 20 mins
  • 25 mins
  • 30 mins

3. A water tank is two-fifth full. Pipe A can fill a tank in 10 minutes and pipe B can empty in 6 minutes. If both the pipes are open, how long will it take to empty or fill the tank completely ?

  • 6 min to empty
  • 7 min to full
  • 6 min to full
  • 7 min to empty

4. Pipes A and B can fill a tank in 5 hours and 6 hours respectively. Pipe C can empty it in 12 hours. If all the three pipes are opened together, then the tank will be filled in.

  • \begin{aligned} 3\frac{9}{5} \end{aligned}
  • \begin{aligned} 3\frac{9}{17} \end{aligned}
  • \begin{aligned} 3\frac{7}{5} \end{aligned}
  • \begin{aligned} 3\frac{7}{17} \end{aligned}

5. A tank is filled by three pipes with uniform flow. The first two pipes operating simultaneously fill the tank in the same time during which the tank is filled by the third pipe alone. The second pipe fills the tank 5 hours faster than the first pipe and 4 hours slower than the third pipe. Find the time required by the first pipe to fill the tank ?

  • 10 hours
  • 15 hours
  • 17 hours
  • 18 hours
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