1999 AMC 8 Problem 4

Below is the professionally curated solution for Problem 4 of the 1999 AMC 8, from LIVE by Po-Shen Loh. You can also try the full timed exam, view all 1999 AMC 8 solutions, or check the answer key.

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Concepts:data and graph interpretation

Difficulty rating: 660

4.

The diagram shows the miles traveled by bikers Alberto and Bjorn. After four hours, about how many more miles has Alberto biked than Bjorn?

1515

2020

2525

3030

3535

Solution:

Looking at the graph, we have that Alberto has biked 6060 miles and Bjorn 4545 miles after 44 hours.

The difference between the two distances is 6045=15 60 - 45 = 15 miles.

Thus, A is the correct answer.

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