Question 5
Sand painting uses colored sand and quick-drying glue, so every required color must be collected before painting starts. There are eleven numbered jars of different colors. The teacher gave one jar to each pupil. The picture shows the jars ANDY, BORA, CIEL and DONA hold, the other jars each needs, and the jars still available.
A pupil must obtain all required colors before starting. After finishing, the pupil returns every jar used. Anyone needing a jar held by someone else must wait until it is returned. Who finishes last?
A pupil must obtain all required colors before starting. After finishing, the pupil returns every jar used. Anyone needing a jar held by someone else must wait until it is returned. Who finishes last?