A container holds the equivalent of 30 glasses of water. If you turn on the tap at the bottom, it takes 10 seconds to fill a glass with water. How long will it take before the container runs dry if the tap is left turned on?
Question #24142. Asked by Harry.
Guru???
Answer has 1 vote
Guru???
Answer has 1 vote.
The answer is dependent on the head of water available which would have an effect on the discharge rate as this will diminish as the water level reduces.
Nov 10 2002, 5:53 PM
Son of The Household Cavalry
Answer has 1 vote
Son of The Household Cavalry
Answer has 1 vote.
Oh if you want to be all scientific then I will say 10 minutes as the water does not run out at a constant rate. The second glass will take longer to fill than the first, because there will be less water in the container, and therefore less pressure on the bottom. Averaging out each glass will take 20 seconds so therefore from full to empty will take 30 x 20 = 600 seconds = 10 minutes.
Nov 10 2002, 5:59 PM
SOTHC
Answer has 2 votes
SOTHC 21 year member
772 replies
Answer has 2 votes.
9 minutes 50 seconds if the first glass has already gone.
Nov 10 2002, 6:01 PM
Harry
Answer has 1 vote
Harry
Answer has 1 vote.
SOTHC you are on a mission to prove that your more than just a cheap comedian, aren't you...well congratulations - you are correct!