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A truck driver is attempting to deliver some furniture. First, he travels 8 km East, and then he turns around and travels 3 km West. Finally, he turns again and travels 13 km to his destination. What distance has the driver traveled?

Answer :

Refer to the diagram below.

Let A =  the starting point.
Let B =  the destination.
Let travel east be positive, and travel west be negative.

Then the total travel is
8 - 3 + 13 = 18 km

Answer: 18 km

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