Neatorama presents our collaboration with Pzzlr, a site where you can always find a riddle to exercise your brain. Can you solve this one?
A tank has three taps. The first can fill the tank in 4 hours, the second can fill the tank in 2 hours and the third can empty the tank in 8 hours.
How long will it take to fill the tank with all three taps operating at the same time? (You can assume the tank is empty to begin with).
Think you know the answer? Find out at Pzzlr!
Look for a new puzzle here at Neatorama every Wednesday, and check out Pzzlr for a puzzle anytime!
(Image credit: Cjp24)