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If a car travels at a speed of 80 km/h and a bike travels at 60 km/h, how far ap

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Question: If a car travels at a speed of 80 km/h and a bike travels at 60 km/h, how far apart will they be after 1 hour if they start from the same point and travel in the same direction?

Options:

  1. 20 km
  2. 30 km
  3. 40 km
  4. 50 km

Correct Answer: 20 km

Solution: 

Relative speed = 80 - 60 = 20 km/h. Distance apart after 1 hour = 20 km.

If a car travels at a speed of 80 km/h and a bike travels at 60 km/h, how far ap

Practice Questions

Q1
If a car travels at a speed of 80 km/h and a bike travels at 60 km/h, how far apart will they be after 1 hour if they start from the same point and travel in the same direction?
  1. 20 km
  2. 30 km
  3. 40 km
  4. 50 km

Questions & Step-by-Step Solutions

If a car travels at a speed of 80 km/h and a bike travels at 60 km/h, how far apart will they be after 1 hour if they start from the same point and travel in the same direction?
  • Step 1: Identify the speed of the car, which is 80 km/h.
  • Step 2: Identify the speed of the bike, which is 60 km/h.
  • Step 3: Determine the relative speed by subtracting the bike's speed from the car's speed: 80 km/h - 60 km/h.
  • Step 4: Calculate the relative speed, which is 20 km/h.
  • Step 5: Since they travel for 1 hour, the distance apart after 1 hour is equal to the relative speed.
  • Step 6: Therefore, the distance apart after 1 hour is 20 km.
  • Relative Speed – The speed of one object as observed from another object, calculated by subtracting the speeds of the two objects when they are moving in the same direction.
  • Distance Calculation – The formula for distance is speed multiplied by time, which is used to determine how far apart two objects will be after a certain period.
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