A tap can fill a tank in 16 minutes and another can empty it in 8 minutes. If the tank is already 1/2 full and both the taps are opened together, will the tank be filled or emptied? How long will it take before the tank is either filled or emptied completely as the case may be ?	Choose the correct choice from the following options.
A) Emptied; 16 min
B) Filled; 8 min
C) Emptied; 8 min
D) Filled; 12 min
E) None of these
If both the pumps are opened together, then the tank will be emptied because the working efficiency of pump empting is more than that of the pump filling it. Thus in 1 min net proportion of the volume of tank filled   = (1⁄8 - 1⁄16) = 1⁄16   or the tank will be emptied in 16 min   ⇒ 1⁄2 tank will be emptied in 8 min.   Answer Emptied; 8 min
<result>C</result>
A tap can fill a tank in 16 minutes and another can empty it in 8 minutes. If the tank is already 1/2 full and both the taps are opened together, will the tank be filled or emptied? How long will it take before the tank is either filled or emptied completely as the case may be ?