Pipes A and B can fill a tank in 5 and 6 hours respectively. Pipe C can empty it in 12 hours. If all the three pipes are opened together, then the tank will be filled in:
ক) 2811 hours
খ) 3917hours
গ) 412 hours
ঘ) 11317hours
Related Questions
ক) Only 1 and 2
খ) Only 2 and 3
গ) Either 2 only or 1 and 3 only
ঘ) Only 2
ক) A > C
খ) D > A
গ) A > D
ঘ) B > D
ক) go and help him
খ) ignore and move on
গ) ask someone to help him
ঘ) wait till he crosses the road
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