Quiz Discussion

A water tap fills a tub in 'p' hours and a sink at the bottom empties it in 'q' hours. If p < q and both tap and sink are opened the tank is filled in 'r' hours, then the relation between p, q, r :

Course Name: Quantitative Aptitude

  • 1]

    1/r = 1/p +1/q

  • 2]

    1/r = 1/p -1/q

  • 3]

    r = p + q

  • 4]

    r = p - q

Solution
No Solution Present Yet

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# Quiz
1
Discuss

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. The time required by the first pipe is:

  • 1] 6 hours
  • 2] 10 hours
  • 3] 15 hours
  • 4] 30 hours
Solution
2
Discuss

Three pipes A, B and C can fill a tank in 6 hours. After working at it together for 2 hours, C is closed and A and B can fill the remaining part in 7 hours. The number of hours taken by C alone to fill the tank is:

  • 1] 10
  • 2] 12
  • 3] 14
  • 4] 16
Solution
3
Discuss

Two pipes A and B can fill a tank in 20 and 30 hours respectively. Both the pipes are opened to fill the tank but when the tank is one - third full, a leak develops in the tank through which one - third water supplied by both the pipes gose out. The total time taken to fill the tank is?

  • 1] 12 hours
  • 2] 14 hours
  • 3] 16 hours
  • 4] 18 hours
Solution
4
Discuss

Two pipes A and B can fill a tank in 20 and 30 minutes respectively. If both the pipes are used together, then how long it will take to fill the tank ?

  • 1]

    10 mins

  • 2]

    12 mins

  • 3]

    15 mins

  • 4]

    20 mins

Solution
5
Discuss

A pump can fill a tank with water in 2 hours. Because of a leak, it took 2 (1/3) hours to fill the tank. The leak can drain all the water of the tank in:

  • 1]

    4 1/3 hours

  • 2]

    7 hours

  • 3]

    8 hours

  • 4]

    14 hours

Solution
6
Discuss

Three taps A, B, C can fill an overhead tank in 4, 6 and 12 hours respectively. How long would the three taps take to fill the tank if all of them are opened together ?

  • 1] 2 hours
  • 2] 4 hours
  • 3] 3 hours
  • 4] 5 hours
Solution
7
Discuss

Two pipes A and B can fill a tank in 15 minutes and 20 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?

  • 1] 10 min. 20 sec.
  • 2] 11 min. 45 sec.
  • 3] 12 min. 30 sec.
  • 4] 14 min. 40 sec.
Solution
8
Discuss

Two pipes A and B can fill a tank in 15 minutes and 20 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?

  • 1]

    10 min. 20 sec.

  • 2]

    11 min. 45 sec.

  • 3]

    12 min. 30 sec.

  • 4]

    14 min. 40 sec.

Solution
9
Discuss

A cistern has two taps which fill it in 12 minutes and 15 minutes respectively. There is also a waste pipe in the cistern. When all the pipes are opened, the empty cistern is full in 20 minutes. How long will the waste pipe take to empty the full cistern?

  • 1]

    12 min

  • 2]

    10 min

  • 3]

    8 min

  • 4]

    16 min

Solution
10
Discuss

Two pipes can fill a tank in 12 hours and 16 hours respectively. A third pipe can empty the tank in 30 hours. If all three pipes are opened and functions simultaneously, how much time will the tank take to be full?( in hours )

  • 1]

  • 2]

  • 3]

  • 4]

Solution
# Quiz