A typhoon 480 km east of Samar moves west at 20 km per hour straight towards the coast. How long until it arrives?

Answer and explanation

Correct answer: A. 24 hours

  1. Step 1: Divide the distance by the speed. Step 2. 480 divided by 20 equals 24. Answer: 24 hours. Why not the others: The other results come from wrong division.

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