Multiple choice

Ravindra walks at 6 km/hr and Riya cycles at 11 km/hr towards each other. What was the distance between them when they started if they meet after 42 minutes?

  1. 17.9 km

  2. 14.9 km

  3. 8.9 km

  4. 11.9 km
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D Correct answer
Explanation

The relative speed of the two people moving towards each other is 6 + 11 = 17 km/hr. Time taken is 42 minutes, which is 42/60 = 0.7 hours. Distance = Speed * Time = 17 * 0.7 = 11.9 km.

AI explanation

Using the relative speed concept for two bodies moving towards each other, their relative speed is the sum of their speeds, which is 6 plus 11, giving 17 km/hr. Since they meet after 42 minutes, the time in hours is 42 divided by 60, which equals 0.7 hours. Using the basic Time, Speed and Distance formula, the initial distance equals 17 multiplied by 0.7, resulting in 11.9 km.

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