Three pipes of same capacity A,B,C can fill a tank in 24 hours. If there are only two pipes A and B of same capacity, the tank can be filled in?
Choose the correct option:
A) 12 B) 24 C) 6 D) 36 E) 8
The part of the tank filled by three pipes in one hour   = 1/24   =&gt; The part of the tank filled by two pipes in 1 hour   = 2/3 * 1/24 = 1/36.   The tank can be filled in 36 hours.   Answer:36
<result>D</result>
Three pipes of same capacity A,B,C can fill a tank in 24 hours. If there are only two pipes A and B of same capacity, the tank can be filled in?