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A car travels 60 km in 1 hour and then 90 km in 1.5 hours. What is the average s

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Question: A car travels 60 km in 1 hour and then 90 km in 1.5 hours. What is the average speed of the car for the entire journey?

Options:

  1. 70 km/h
  2. 75 km/h
  3. 80 km/h
  4. 85 km/h

Correct Answer: 75 km/h

Solution: 

Total distance = 60 + 90 = 150 km. Total time = 1 + 1.5 = 2.5 hours. Average speed = Total distance / Total time = 150 / 2.5 = 60 km/h.

A car travels 60 km in 1 hour and then 90 km in 1.5 hours. What is the average s

Practice Questions

Q1
A car travels 60 km in 1 hour and then 90 km in 1.5 hours. What is the average speed of the car for the entire journey?
  1. 70 km/h
  2. 75 km/h
  3. 80 km/h
  4. 85 km/h

Questions & Step-by-Step Solutions

A car travels 60 km in 1 hour and then 90 km in 1.5 hours. What is the average speed of the car for the entire journey?
  • Step 1: Calculate the total distance traveled by the car. Add the two distances together: 60 km + 90 km.
  • Step 2: Calculate the total time taken for the journey. Add the two time durations together: 1 hour + 1.5 hours.
  • Step 3: Use the formula for average speed, which is total distance divided by total time. Plug in the values from Step 1 and Step 2.
  • Step 4: Perform the division to find the average speed.
  • 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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