A pipe can fill a tank in 16 hours. Due to a leak in the bottom,it is filled in 24 hours. If the tank is full, how much time will the leak take to empty it ?
Options:
A) 12 hrs
B) 24 hrs
C) 36 hrs
D) 48 hrs
E) 42 hrs
Time taken by leak to empty tank = 1/(1/16-1/24)= 
<gadget id="calculator">1/(1/16-1/24)</gadget>
<output>48</output>
48 hrs   ANSWER:48 hrs
<result>D</result>
A pipe can fill a tank in 16 hours. Due to a leak in the bottom,it is filled in 24 hours. If the tank is full, how much time will the leak take to empty it ?