6th Grade Itinerary Problem Solution Review: Problem 4

Problem: Somewhere between points A and B there is a bridge. Kangbin and Kalie travel from points A and B towards each other at constant speeds and manage to meet each other, after three hours, on the bridge. If Kangbin's speed increased by 2 kilometers per hour, and Kalie started 0.5 hour before Kangbin did, they will still be able to meet on the bridge. If Kangbin traveled by his normal speed and Kalie decreased 2 kilometers per hour, but still started 0.5 hour before Kangbin did, they still meet each other on the bridge. What is the distance between A and B?

Key: Visually express every scenario given in the problem and then compare in order to get the values needed

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