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IMPORTANT

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A cistern filled by a tap in $3 \frac{1}{2}$ hours. Due to leak in the bottom of the cistern, it takes half an hour longer to fill the cistern. If the cistern is full how long will the leak take to empty it?

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Important Questions on Arithmetic Maths

MEDIUM

CISF Head Constable

IMPORTANT

Police Constables>Chapter 3 - Arithmetic Maths>PIPES - CISTERNS>Q 7

A cistern has three pipes

A, B

and

C

. The pipes

A

and

B

can fill in

4

and

5

hours respectively and

C

can empty it in

2

hours. If the pipes are opened in order at

1

2

and

3 p m

. When will the cistern be empty.

EASY

CISF Head Constable

IMPORTANT

Police Constables>Chapter 3 - Arithmetic Maths>PIPES - CISTERNS>Q 8

Two pipes

A

and

B

can fill a tank in

4

hours and

5

hours respectively. If they are turned up alternately for one hour each. If

A

starts, the time taken to fill the tank is:

MEDIUM

CISF Head Constable

IMPORTANT

Police Constables>Chapter 3 - Arithmetic Maths>PIPES - CISTERNS>Q 9

Two pipes

A

and

B

can fill a cistern in

12

min and

15

min respectively. Both are open together but after

3

minutes

A

is turned off. After how much more time will the cistern be filled?

MEDIUM

CISF Head Constable

IMPORTANT

Police Constables>Chapter 3 - Arithmetic Maths>PIPES - CISTERNS>Q 10

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:

EASY

CISF Head Constable

IMPORTANT

Police Constables>Chapter 3 - Arithmetic Maths>PIPES - CISTERNS>Q 11

Two pipes

A

and

B

can separately fill a tank in

12

minutes and

15

mintues respectively. A third pipe

C

can drain off

45

litres of water per minute. If all the pipes are opened the tank can be filled in

15

minutes. What is the capacity of the tank.

HARD

CISF Head Constable

IMPORTANT

Police Constables>Chapter 3 - Arithmetic Maths>PIPES - CISTERNS>Q 12

A leak in a bottom of a tank can empty the full tank in

6

hour. An inlet pipe fills water at the rate of

4

litres per min. When the tank is full the inlet is opened and due to the leak the tank is empty in

8

hours. The capacity of tank is

EASY

CISF Head Constable

IMPORTANT

Police Constables>Chapter 3 - Arithmetic Maths>PIPES - CISTERNS>Q 13

Two pipes

A

and

B

can separately fill a cistern in

10

minutes and

15

minutes respectively. A person opens both the pipes together when the cistern should have been full he finds the waste pipe. He then closes the waste pipe and in another

4

minutes the cistern was full. In what time can the waste pipe empty the cistern when full.

MEDIUM

CISF Head Constable

IMPORTANT

Police Constables>Chapter 3 - Arithmetic Maths>PIPES - CISTERNS>Q 14

An outlet pipe can empty

{\frac{2}{3}}^{r d}

of a cistern in

12

minutes, in

8

minutes what part of the cistern will be emptied?

A cistern filled by a tap in 312 hours. Due to leak in the bottom of the cistern, it takes half an hour longer to fill the cistern. If the cistern is full how long will the leak take to empty it?

Important Questions on Arithmetic Maths

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A cistern filled by a tap in $3 \frac{1}{2}$ hours. Due to leak in the bottom of the cistern, it takes half an hour longer to fill the cistern. If the cistern is full how long will the leak take to empty it?