A man runs his car out of gas thereby completely emptying his 16 gallon tank. He only has a 3, a 6, and a 11 gallon container (and fortunately a wagon to carry the containers in) in his trunk. He has nothing else in which he can carry gas. He walks a few miles to a gas station, and as luck would have it the gauge on the pump is broken so he can not use that to measure the fuel. He is in a pretty remote area with only one gas station for miles. Gas costs $3.09⁹, and he only has a $50. Using only the containers provided, and only walking once to and from the gas station, how can he get exactly 16 gallons of gas into his car?

could youtake and fill say the 11g container pay for it , take it back to the car and fill the tank of the car up 11g.
then drive back to the gas station and fill up the other 5 gallons
he has only waked the distance once as the other time was driving

Posted by Will on 2007-09-23 17:31:16