Three taps A, B and C can fill a tank in 12, 15 and 20 hours respectively. If A is open all the time and B and C are open for one hour each alternately, the tank will be full in_________?
A. 6 hours
B. 6 2/3 hours
C. 7 hours
D. 7 1/2 hours
Related Questions on Pipes & Cisterns Mcqs
A. 3 hrs 15 min
B. 3 hrs 45 min
C. 4 hrs
D. 4 hrs 15 min
A. 81 min.
B. 108 min.
C. 144 min.
D. 192 min.