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 7 metre long and 4 meter wide wide. At what speed should water run through a pipe 5 cm broad and 4 cm deep so that in 6 hours and 18 minutes water level in the tank rises by 4.5 meter?

  • 1] 10 km/hours
  • 2] 12 km/hours
  • 3] 8 km/hours
  • 4] None of these
Solution
2
Discuss

One pipe can fill a tank three times as fast as another pipe. If together the two pipes can fill the tank in 36 minutes, then the slower pipe alone will be able to fill the tank in:

  • 1] 81 minutes
  • 2] 108 minutes
  • 3] 144 minutes
  • 4] 192 minutes
Solution
3
Discuss

3/4 part of the tank is full of water. When 30 litres of water is taken out, the tank becomes empty. The capacity of the tank is -

 

  • 1] 36 liters
  • 2] 42 liters
  • 3] 40 liters
  • 4] 38 liters
Solution
4
Discuss

An electric pump can fill a tank in 3 hours. Because of a leak in the tank, it  took 321​ hours to fill the tank. The leak can drain all the water off the tank in

  • 1]

    12 hours

  • 2]

    10 1/2 hours

  • 3]

    6 1/2 hours

  • 4]

    21 hours

Solution
5
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
6
Discuss

A swimming pool is filled by three pipes with uniform flow. The first two pipes operating simultaneously fill the pool in the same time during which the pool is filled by the third pipe alone. The second pipe fills the pool 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
7
Discuss

12 buckets of water fill a tank when the capacity of each bucket is 13.5 litres. How many buckets will be needed to fill the same tank, if the capacity of each bucket is 9 litres?

  • 1] 8
  • 2] 15
  • 3] 16
  • 4] 18
Solution
8
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
9
Discuss

A pipe can fill a tank in x hours and another pipe can empty it in y (y > x) hours. If both pipes are open, in how many hours will the tank is filled?

  • 1]

    (x - y) hours

  • 2]

    (y - x) hours

  • 3]

    hours

  • 4]

    hours

Solution
10
Discuss

A tank is filled in 5 hours by three pipes A, B and C. The pipe C is twice as fast as B and B is twice as fast as A. How much time will pipe A alone take to fill the tank?

  • 1] 20 hours
  • 2] 25 hours
  • 3] 35 hours
  • 4] Cannot be determined
  • 5] None of these
Solution
# Quiz