Two cars leave the same point at the same time and travel in opposite directions at 50 km/h and 70 km/h. How far apart are they after 3 hours?
Correct answer: C. 360 km
Moving in opposite directions, the distance between them grows at 50 + 70 = 120 km per hour. After 3 hours they are 120 × 3 = 360 km apart.
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