A cistern has a leak which empty it in 8 hrs, A tap is turned on which admits 6 liters a minute into the cistern, and it is now emptied in 12 hours, How many liters does the cistern hold ? Choose the correct choice from the following answers.
A) 8640	B) 8740	C) 8840	D) 8540	E) 8940
Inflow of water in 12hrs with rate 6 lit/min= 6*60*12= 
<gadget id="calculator">6*60*12</gadget>
<output>4_320</output>
4320   But, the same volume is emptied in 12 hrs, so the total capacity= total inflow + total outflow= 4320+4320= 
<gadget id="calculator">4320+4320</gadget>
<output>8_640</output>
8640   8640NSWER:8640
<result>A</result>
A cistern has a leak which empty it in 8 hrs, A tap is turned on which admits 6 liters a minute into the cistern, and it is now emptied in 12 hours, How many liters does the cistern hold ?