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To cover a distance of 81 km in 1.5 hours what should be the average speed of the car in meters/second?
  • a)
    10
  • b)
    15
  • c)
    12
  • d)
    9
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
To cover a distance of 81 km in 1.5 hours what should be the average s...
So the answer is option B.
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Community Answer
To cover a distance of 81 km in 1.5 hours what should be the average s...
Given:
Distance = 81 km
Time taken = 1.5 hours

To find:
Average speed in meters/second

Formula:
Average speed = Total distance / Total time

Calculation:
1. Convert the distance from km to meters.
81 km = 81,000 meters

2. Convert the time from hours to seconds.
1.5 hours = 1.5 x 60 x 60 seconds = 5,400 seconds

3. Substitute the values in the formula to find the average speed.
Average speed = 81,000 meters / 5,400 seconds
Average speed = 15 meters/second

Therefore, the average speed of the car in meters/second is 15.

Answer:
Option B) 15
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To cover a distance of 81 km in 1.5 hours what should be the average speed of the car in meters/second?a)10b)15c)12d)9Correct answer is option 'B'. Can you explain this answer?
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