Two pipes A and B can separately fill a tank in 8 and 10 minutes respectively. A third pipe C can drain off 15 liters of water per minute. If all the pipes are opened, the tank can be filled in 10 minutes. What is the capacity of the tank?  Choose the correct option:	A) 590 liters	B) 160 liters	C) 740 liters	D) 560 liters	E) 120 liters
1/8 + 1/10 - 1/x   = 1/10   x = 8   8 * 15= 
<gadget id="calculator">8 * 15</gadget>
<output>120</output>
120   Answer:120 liters
<result>E</result>
Two pipes A and B can separately fill a tank in 8 and 10 minutes respectively. A third pipe C can drain off 15 liters of water per minute. If all the pipes are opened, the tank can be filled in 10 minutes. What is the capacity of the tank?