Multiple choice

Four friends planned a road trip from Ludhiana to Gurugram. They went there by car and the distance was 360 km. They took 4 stoppages of half an hour each. They started their journey at 7 a.m. in the morning and they reached Gurugram at 1 p.m. Find the speed of the car.

  1. 80 km/hr

  2. 60 km/hr

  3. 70 km/hr

  4. 90 km/hr

  5. 46 km/hr
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D Correct answer
Explanation

Total time elapsed = 6 hours. Stoppages = 4 * 0.5 = 2 hours. Driving time = 6 - 2 = 4 hours. Speed = Distance / Driving Time = 360 / 4 = 90 km/hr.

AI explanation

The total time from 7 a.m. to 1 p.m. is 6 hours, and the 4 stoppages of half an hour each add up to 2 hours. This means the actual travel time for the 360 km journey is 4 hours. Using the formula speed equals distance divided by time, the speed is 360 km divided by 4 hours, which gives 90 km/hr.

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