Two cars leave a city at the same time in opposite directions at 60 km/h and 80 km/h. After how many hours are they 350 km apart?

A2 hours

B2.5 hours

C3 hours

D3.5 hours

Explanation

Relative speed (opposite) = 60 + 80 = 140 km/h. Time = 350 / 140 = 2.5 hours.

Exam Relevance

Topic: Age Problems, Time & Distance, Work
Subtopic: Relative Speed

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