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A train has to cover a distance of 900 km in 25 hours. What should be its average speed in meters/second?
- a)20
- b)10
- c)18
- d)36
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
A train has to cover a distance of 900 km in 25 hours. What should be ...
Distance to be covered = 900 km
Time taken = 25 hrs
Average speed (km/hr) = 900/25 = 36 km/h
Average speed (m/s) = 36 km/h × 5/18 = 10 m/s
∴ Average speed in meters/second = 10 m/s
Time taken = 25 hrs
Average speed (km/hr) = 900/25 = 36 km/h
Average speed (m/s) = 36 km/h × 5/18 = 10 m/s
∴ Average speed in meters/second = 10 m/s
Most Upvoted Answer
A train has to cover a distance of 900 km in 25 hours. What should be ...
Solution:
To find the average speed of the train, we need to divide the total distance traveled by the time taken.
Given:
Distance = 900 km
Time = 25 hours
Step 1: Convert the distance from kilometers to meters.
1 kilometer = 1000 meters
Therefore, the distance in meters = 900 km * 1000 meters/kilometer = 900,000 meters.
Step 2: Convert the time from hours to seconds.
1 hour = 3600 seconds
Therefore, the time in seconds = 25 hours * 3600 seconds/hour = 90,000 seconds.
Step 3: Calculate the average speed using the formula:
Average speed = Distance / Time
Substituting the values we calculated earlier,
Average speed = 900,000 meters / 90,000 seconds = 10 meters/second.
Therefore, the average speed of the train is 10 meters/second.
Hence, the correct answer is option B) 10.
To find the average speed of the train, we need to divide the total distance traveled by the time taken.
Given:
Distance = 900 km
Time = 25 hours
Step 1: Convert the distance from kilometers to meters.
1 kilometer = 1000 meters
Therefore, the distance in meters = 900 km * 1000 meters/kilometer = 900,000 meters.
Step 2: Convert the time from hours to seconds.
1 hour = 3600 seconds
Therefore, the time in seconds = 25 hours * 3600 seconds/hour = 90,000 seconds.
Step 3: Calculate the average speed using the formula:
Average speed = Distance / Time
Substituting the values we calculated earlier,
Average speed = 900,000 meters / 90,000 seconds = 10 meters/second.
Therefore, the average speed of the train is 10 meters/second.
Hence, the correct answer is option B) 10.
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A train has to cover a distance of 900 km in 25 hours. What should be its average speed in meters/second?a)20b)10c)18d)36Correct answer is option 'B'. Can you explain this answer?
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