6th Grade Solving Itinerary Problems Using Comparison: Problem 3

Problem: Two classes A and B are going on a field trip, but there is only one bus that can carry one class at a time. The walking speed of class A is 3 kilometers per hour. The walking speed of class B is 4 kilometers per hour. The speed of the bus is 48 kilometers per hour. If the two classes were to arrive at their destination in the shortest amount of time possible, what is the ratio of the amount of distance class A walked compared to the amount of distance class B walked?

Key: Compare both speeds of A and B to the bus speed. And then find ratio of speeds A to B.

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