Interval and Pickup Problems: Problem 4

Problem: Class 1 and Class 2 are going on a field trip. Class 1 travels 4 kilometers per hour and Class 2 travels 3 kilometers per hour. The school has also provided a bus, but can only carry one class at a time. The bus's speed is 48 kilometers per hour. If the goal is to get both classes to the destination in the shortest time possible, what is the ratio between the distance that Class 1 has to walk compared to Class 2?

Key: Find bridge between Class 1 and Class 2 to create proper distance ratio

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