6th Grade Itinerary Problems Using Formulas: Problem 3

Problem: A and B are running at constant speeds on a circular track. They both start at the same point, at the same time. It takes A 40 seconds to run the entire track by himself. If the two travel in opposite directions they meet after 15 seconds. So if they run in the same direction, it takes ______ seconds for B to catch up to A.

Key: Create sketch of problem, set total distance as unit 1

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