Multiple choice

Two scooter riders start from the same place and move in opposite directions. One goes towards east at the rate of 18 km/hr and the other goes towards west at the rate of 20 km/hr. What time will they require to be 228 km apart?

  1. 12 hr

  2. 18 hr

  3. 3 hr

  4. 6 hr
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Since they move in opposite directions, their relative speed is 18 + 20 = 38 km/hr. Time = Distance / Speed = 228 / 38 = 6 hours.

AI explanation

Since the riders move in opposite directions, their relative speed is the sum of their individual speeds, giving 18 km/hr plus 20 km/hr equals 48 km/hr. Using the formula time equals distance divided by speed, the required time is 228 km divided by 48 km/hr. This calculation results in a required time of 6 hours.

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