A car travels 150 km in 2 hours and then 100 km in 1 hour. What is the average speed of the car? (2022)
Correct Answer: 83.33 km/h
- Step 1: Find the total distance traveled by the car. Add the two distances: 150 km + 100 km.
- Step 2: Calculate the total distance: 150 km + 100 km = 250 km.
- Step 3: Find the total time taken for the trip. Add the two times: 2 hours + 1 hour.
- Step 4: Calculate the total time: 2 hours + 1 hour = 3 hours.
- Step 5: Calculate the average speed using the formula: Average speed = Total distance / Total time.
- Step 6: Substitute the values: Average speed = 250 km / 3 hours.
- Step 7: Perform the division: 250 km / 3 hours = 83.33 km/h.
- Step 8: Round the average speed to the nearest whole number: 83.33 km/h rounds to 80 km/h.
- Average Speed Calculation – The average speed is calculated by dividing the total distance traveled by the total time taken.
- Unit Consistency – Ensuring that distance and time are in compatible units (e.g., kilometers and hours) for accurate calculations.
