3.
You have a 3liter and an 8liter container.
Using these two containers,
you want to prepare exactly 1 liter of water.
Explain how this can beaccomplished.
You can use as much water as you need.
＜解答＞
３Lの容器に水を一杯に入れて、８L容器に
３回続けて移す。３回めは２Lしかはいらない
ので、３L容器に１L残る。