Multiple choice

Two trains leave from the stations Ludhiana and Jalandhar and are both travelling on the same route. Train 1 takes 4 hours to reach Jalandhar, while train 2 takes 9 hours to reach Ludhiana. If train 2 is running at the speed of 48 km/hr, then calculate the speed of train 1.

  1. 148 km/hr

  2. 128 km/hr

  3. 108 km/hr

  4. 118 km/hr

  5. Data inadequate
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C Correct answer
Explanation

The distance between the stations is constant. Let D be the distance. Speed of train 2 = D/9 = 48 km/hr, so D = 432 km. Speed of train 1 = D/4 = 432/4 = 108 km/hr.

AI explanation

The distance between the stations is the speed of train 2 multiplied by its time, which is 48 multiplied by 9 to equal 432 km. The speed of train 1 is this distance divided by its travel time of 4 hours. Thus, 432 divided by 4 equals 108 km/hr.

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