IM: 6.6.1: Tape Diagrams and Equations (Lesson)

Which equation does this diagram represent and what is the length of the diagram?

Here are two tape diagrams. Match each equation to one of the tape diagrams.

You are walking down a road, seeking treasure. The road branches off into three paths. A guard stands in each path. You know that only one of the guards is telling the truth, and the other two are lying. Here is what they say:

• Guard 1: The treasure lies down this path.

• Guard 2: No treasure lies down this path; seek elsewhere.

• Guard 3: The first guard is lying.

Which path leads to the treasure?