# A cistern can be filled by pipe P in 3 hours and pipe Q in 5 hours and empty by pipe R in 2 hours. If all these pipes are open, then in how many hours the cistern will be full?

A cistern can be filled by pipe P in 3 hours and pipe Q in 5 hours and empty by pipe R in 2 hours. If all these pipes are open, then in how many hours the cistern will be full? [A]10 hours [B]15 hours [C]30 hours [D]Cannot be filled Show Answer 30 hours Because ..

# A tank can be filled by pipe A and pipe B in 2 hours and in 6 hours respectively. At 10 AM pipe A was opened. If pipe B is opened at 11 AM then at what time the tank will be filled?

A tank can be filled by pipe A and pipe B in 2 hours and in 6 hours respectively. At 10 AM pipe A was opened. If pipe B is opened at 11 AM then at what time the tank will be filled? [A]11:45 AM [B]12:45 AM [C]5:00 PM [D]12 PM Show Answer 11:45 AM ..

# If pipes, A and B, together can fill a tank in 20 minutes and A alone can fill in 30 minutes. Then pipe B alone can fill the tank in :

If pipes, A and B, together can fill a tank in 20 minutes and A alone can fill in 30 minutes. Then pipe B alone can fill the tank in : [A]51 minutes [B]60 minutes [C]61 minutes [D]62 minutes Show Answer 60 minutes Because according to the question, part of the tank filled by pipe ..

# Three taps A, B and C together can fill an empty cistern in 10 minutes. The tap A alone can fill it in 30 minutes and the tap B alone in 40 minutes. How long will the tap C alone take to fill it?

Three taps A, B and C together can fill an empty cistern in 10 minutes. The tap A alone can fill it in 30 minutes and the tap B alone in 40 minutes. How long will the tap C alone take to fill it? [A]40 minutes [B]32 minutes [C]16 minutes [D]24 minutes Show Answer 24 ..

# Two pipes can fill a cistern separately in 10 hours and 15 hours. They can together fill the cistern in

Two pipes can fill a cistern separately in 10 hours and 15 hours. They can together fill the cistern in [A]9 hours [B]7 hours [C]6 hours [D]8 hours Show Answer 6 hours Part of the cistern filled by both pipes in 1 hour = ∴ The cistern will be filled in 6 hours, hence option ..

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