A tap can fill a tank in 6 hours. After half the tank is filled then 3 more similar taps are opened. What will be total time taken to fill the tank completely.	Pick one.
A) 3hrs 45 min
B) 2 hrs
C) 4 hrs 15 min
D) 5 hrs 30 min
E) 2 hrs 20 min
1 hr = 4(1/6)=2/3   ==1-1/2=1/2   2/3:1/2::1:X   X=(1/2*1*32)   x=3/4 hrs ==&gt; 3hrs 45 min   3hrs 45 minNSWER 3hrs 45 min
<result>A</result>
A tap can fill a tank in 6 hours. After half the tank is filled then 3 more similar taps are opened. What will be total time taken to fill the tank completely.