Henry Ernest Dudeney/Puzzles and Curious Problems/296 - Water Measurement

by : $296$

 * Water Measurement
 * A maid was sent to the brook with two vessels that exactly measured $7$ pints and $11$ pints exactly.
 * She had to bring back exactly $2$ pints of water.
 * What is the smallest possible number of transactions necessary?


 * A "transaction" is filling a vessel, of emptying it, or pouring from one vessel to another.