Pipe A fills the cistern in half an hour and pipe B in 40 minutes, but owing to a crack in the bottom of the cistern it is found that pipe A now takes, 40 minutes to fill the cistern. How long will B take now to fill it and how long will the crack take to empty it ?

B fills in an hour and the leak empties in an hour

The leak empties in 1 hour and B fills in 2 hours

B fills in an hour and the leak empties in 2 hours

B fills in an hour and the leak empties in an hour

Pipe A fills the cistern in half an hour and pipe B in 40 minutes, but

1.	Pipe A fills the cistern in half an hour and pipe B in 40 minutes, but owing to a crack in the bottom of the cistern it is found that pipe A now takes, 40 minutes to fill the cistern. How long will B take now to fill it and how long will the crack take to empty it ?
A.	The leak empties in 1 hour and B fills in 2 hours
B.	B fills in an hour and the leak empties in 2 hours
C.	B fills in an hour and the leak empties in an hour
D.	Data inadequate
Answer» C. B fills in an hour and the leak empties in an hour

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Pipe A fills the cistern in half an hour and pipe B in 40 minutes, but owing to a crack in the bottom of the cistern it is found that pipe A now takes, 40 minutes to fill the cistern. How long will B take now to fill it and how long will the crack take to empty it ?

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