Multiple choice

A train takes $210$ minutes to cover a distance of $126\ km$. With the same speed how long will it take to cover a distance of $168\ km$?

  1. $157.5\ min$
  2. $175.5\ min$
  3. $240\ min$
  4. $280\ min$
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D Correct answer
Explanation

Speed = Distance / Time = 126 km / 210 min = 0.6 km/min. Time for 168 km = 168 / 0.6 = 280 minutes.

AI explanation

Using the basic speed formula, the speed of the train is distance divided by time, which is 126 km divided by 210 minutes, yielding 0.6 km/min. To find the time required to cover 168 km at this same speed, divide the new distance by the speed. This gives 168 / 0.6, which equals 280 min.

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