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If you leave your house and drive to the mall that is 6 kilometers away, and it takes you 12 minutes to get there, what is your average speed?

A. 0.5 km/min

B. 0.75 km/min

C. 1 km/min

D. 1.5 km/min

User Njuffa
by
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1 Answer

3 votes

Final answer:

The average speed for a trip of 6 kilometers in 12 minutes is calculated by dividing the total distance by the total time, which results in an average speed of 0.5 kilometers per minute (Option A).

Step-by-step explanation:

To calculate the average speed of a trip, you divide the total distance traveled by the total time taken for the trip. In this case, you need to find the average speed of a car traveling a distance of 6 kilometers in a time span of 12 minutes. Since speed is typically measured in kilometers per hour (km/h), we can convert the time from minutes to hours to find the average speed in standard units.

First, convert 12 minutes to hours:

  • 12 minutes × (1 hour / 60 minutes) = 0.2 hours

Then, use the formula for average speed:

  • Average speed = Total distance / Total time
  • Average speed = 6 km / 0.2 hours
  • Average speed = 30 km/h

To find the answer in km/min, we divide the 6 km by 12 minutes directly:

  • Average speed = 6 km / 12 min
  • Average speed = 0.5 km/min

Therefore, the correct answer is Option A, 0.5 km/min.

User Sirwan Afifi
by
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