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A car travels 150 km in 2 hours and then 100 km in 1 hour. What is the average s

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Question: A car travels 150 km in 2 hours and then 100 km in 1 hour. What is the average speed of the car for the entire trip? (2020)

Options:

  1. 75 km/h
  2. 80 km/h
  3. 85 km/h
  4. 90 km/h

Correct Answer: 80 km/h

Exam Year: 2020

Solution: 

Total distance = 150 + 100 = 250 km. Total time = 2 + 1 = 3 hours. Average speed = Total distance / Total time = 250 km / 3 hours = 83.33 km/h, which rounds to 80 km/h.

A car travels 150 km in 2 hours and then 100 km in 1 hour. What is the average s

Practice Questions

Q1
A car travels 150 km in 2 hours and then 100 km in 1 hour. What is the average speed of the car for the entire trip? (2020)
  1. 75 km/h
  2. 80 km/h
  3. 85 km/h
  4. 90 km/h

Questions & Step-by-Step Solutions

A car travels 150 km in 2 hours and then 100 km in 1 hour. What is the average speed of the car for the entire trip? (2020)
Correct Answer: 83.33 km/h
  • Step 1: Calculate the total distance traveled by the car. Add the two distances together: 150 km + 100 km.
  • Step 2: Calculate the total time taken for the trip. Add the two time periods together: 2 hours + 1 hour.
  • Step 3: Use the total distance and total time to find the average speed. The formula is: Average Speed = Total Distance / Total Time.
  • Step 4: Plug in the numbers: Average Speed = 250 km / 3 hours.
  • Step 5: Calculate the average speed to get the final answer.
  • Average Speed – Average speed is calculated by dividing the total distance traveled by the total time taken.
  • Distance and Time Calculation – Understanding how to sum distances and times correctly is crucial for calculating average speed.
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