# Quiz-1

Question 1

Time: 00:00:00
pipes P and Q would fill a cistern 18 and 24 minutes respectively. Both pipes being opened, find when the first pipe must be turned off so that the cistern may be just filled in 12 minutes?

after 12 mins

after 12 mins

after 9 mins

after 9 mins

after 8 1/2 mins

after 8 1/2 mins

after 10 mins

after 10 mins

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Question 2

Time: 00:00:00
A cistern which could be filled in 9 hours takes one hour more to be filled owing to a leak in its bottom. If the cistern is full in what time will the leak empty it?

45 hrs

45 hrs

60 hrs

60 hrs

75 hrs

75 hrs

90 hrs

90 hrs

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Question 3

Time: 00:00:00

6 min

6 min

12 min

12 min

19 min

19 min

10 min

10 min

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Question 4

Time: 00:00:00
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 will it take to fill the tank?

12 min

12 min

15 min

15 min

25 min

25 min

20 min

20 min

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Question 5

Time: 00:00:00
A water tank is two-fifth full. Pipe A can fill a tank in 10 minutes and pipe B can empty it 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

6 min. to empty

6 min. to full

6 min. to full

9 min. to empty

9 min. to empty

9 min. to full

9 min. to full

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Question 6

Time: 00:00:00
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?

4 1/3 hrs

4 1/3 hrs

7 hrs

7 hrs

8 hrs

8 hrs

14 hrs

14 hrs

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Question 7

Time: 00:00:00
Two pipes A and B together can fill a cistern in 4 hours. Had they been opened separately, then B would have taken 6 hours more than A to fill cistern. How much time will be taken by A to fill the cistern separately?

1 hr

1 hr

2 hrs

2 hrs

6 hrs

6 hrs

8 hrs

8 hrs

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Question 8

Time: 00:00:00
One top can fill a cistern in 2 hours and another can empty the cistern in 3 hours. How long will they take to fill the cistern if both the taps are opened?

5 hours

5 hours

6 hours

6 hours

7 hours

7 hours

8 hours

8 hours

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Question 9

Time: 00:00:00
A cistern is normally filled in 8 hours but takes two hours longer to fill because of a leak in its bottom. If the cistern is full the leak will empty it in.

16 hrs

16 hrs

20 hrs

20 hrs

25 hrs

25 hrs

40 hrs

40 hrs

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Question 10

Time: 00:00:00
A cistern has a leak which would empty the cistern in 20 minutes. A tap is turned on which admits 4 liters a minute into the cistern, and it is emptied in 24 minutes. How many liters does the cistern hold?

480 liters

480 liters

600 liters

600 liters

720 liters

720 liters

800 liters

800 liters

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