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A person crosses a 600 m long street in 5 minutes. What is his speed in km per hour?
- a)8.2
- b)4.2
- c)6.1
- d)7.2
- e)None of these
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
A person crosses a 600 m long street in 5 minutes. What is his speed i...
It is given in the question that a man crosses 600m long street in 5 minutes. We have to find the speed of the man in km per hour. To find the speed of the man in km per hour, we have to convert the given distance to km and also convert the given time to hour.
First, let us see the conversion of the given distance into km. We know that 1km = 1000m.
So, to convert 600m to km, we can write, 600m = x km.
x = 600/1000 km
x = 0.6km
Now, let us convert the given time into hours. We know that 1 hour = 60 minutes.
So, to convert 5 minutes to hours, we can write, 5 minutes = y hours.
y = 5/60 hrs
y = 0.083 hrs
Now we know that speed can be found out using the formula, Speed=Distance/Time, We have found out that distance = 0.6km and time = 0.083 hrs. So, on substituting these values in the formula of speed, we get,
Speed = 0.6/ 0.083
= 6 × 1000 / 83 × 10
= 6000/ 830
= 600/83
= 7.2 km/h
Therefore, we get the speed of the man crossing a 600m long street in 5 minutes as 7.2km/h.
Hence, option (D) is the correct answer.
First, let us see the conversion of the given distance into km. We know that 1km = 1000m.
So, to convert 600m to km, we can write, 600m = x km.
x = 600/1000 km
x = 0.6km
Now, let us convert the given time into hours. We know that 1 hour = 60 minutes.
So, to convert 5 minutes to hours, we can write, 5 minutes = y hours.
y = 5/60 hrs
y = 0.083 hrs
Now we know that speed can be found out using the formula, Speed=Distance/Time, We have found out that distance = 0.6km and time = 0.083 hrs. So, on substituting these values in the formula of speed, we get,
Speed = 0.6/ 0.083
= 6 × 1000 / 83 × 10
= 6000/ 830
= 600/83
= 7.2 km/h
Therefore, we get the speed of the man crossing a 600m long street in 5 minutes as 7.2km/h.
Hence, option (D) is the correct answer.
Most Upvoted Answer
A person crosses a 600 m long street in 5 minutes. What is his speed i...
To calculate the speed of a person crossing a street, we need to convert the given measurements into the same units and then apply the formula for speed.
Given:
Distance = 600 m
Time = 5 minutes
1. Convert Time to Hours:
Since the speed is usually measured in kilometers per hour, we need to convert the time from minutes to hours. There are 60 minutes in an hour, so we divide the given time by 60.
Time in hours = 5 minutes / 60 = 0.083 hours
2. Calculate Speed:
The formula for speed is:
Speed = Distance / Time
Substituting the given values:
Speed = 600 m / 0.083 hours
3. Convert Distance to Kilometers:
Since the speed is measured in kilometers per hour, we need to convert the distance from meters to kilometers. There are 1000 meters in a kilometer, so we divide the given distance by 1000.
Distance in kilometers = 600 m / 1000 = 0.6 km
4. Substitute the Values:
Now we can calculate the speed using the formula:
Speed = 0.6 km / 0.083 hours
5. Perform the Division:
Dividing 0.6 km by 0.083 hours gives us:
Speed = 7.23 km/h
So, the person's speed is approximately 7.23 km/h.
Since the given options are rounded, the closest option to the calculated speed of 7.23 km/h is option D, which is 7.2 km/h.
Given:
Distance = 600 m
Time = 5 minutes
1. Convert Time to Hours:
Since the speed is usually measured in kilometers per hour, we need to convert the time from minutes to hours. There are 60 minutes in an hour, so we divide the given time by 60.
Time in hours = 5 minutes / 60 = 0.083 hours
2. Calculate Speed:
The formula for speed is:
Speed = Distance / Time
Substituting the given values:
Speed = 600 m / 0.083 hours
3. Convert Distance to Kilometers:
Since the speed is measured in kilometers per hour, we need to convert the distance from meters to kilometers. There are 1000 meters in a kilometer, so we divide the given distance by 1000.
Distance in kilometers = 600 m / 1000 = 0.6 km
4. Substitute the Values:
Now we can calculate the speed using the formula:
Speed = 0.6 km / 0.083 hours
5. Perform the Division:
Dividing 0.6 km by 0.083 hours gives us:
Speed = 7.23 km/h
So, the person's speed is approximately 7.23 km/h.
Since the given options are rounded, the closest option to the calculated speed of 7.23 km/h is option D, which is 7.2 km/h.
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Community Answer
A person crosses a 600 m long street in 5 minutes. What is his speed i...
It is given in the question that a man crosses 600m long street in 5 minutes. We have to find the speed of the man in km per hour. To find the speed of the man in km per hour, we have to convert the given distance to km and also convert the given time to hour.
First, let us see the conversion of the given distance into km. We know that 1km = 1000m.
So, to convert 600m to km, we can write, 600m = x km.
x = 600/1000 km
x = 0.6km
Now, let us convert the given time into hours. We know that 1 hour = 60 minutes.
So, to convert 5 minutes to hours, we can write, 5 minutes = y hours.
y = 5/60 hrs
y = 0.083 hrs
Now we know that speed can be found out using the formula, Speed=Distance/Time, We have found out that distance = 0.6km and time = 0.083 hrs. So, on substituting these values in the formula of speed, we get,
Speed = 0.6/ 0.083
= 6 × 1000 / 83 × 10
= 6000/ 830
= 600/83
= 7.2 km/h
Therefore, we get the speed of the man crossing a 600m long street in 5 minutes as 7.2km/h.
Hence, option (D) is the correct answer.
First, let us see the conversion of the given distance into km. We know that 1km = 1000m.
So, to convert 600m to km, we can write, 600m = x km.
x = 600/1000 km
x = 0.6km
Now, let us convert the given time into hours. We know that 1 hour = 60 minutes.
So, to convert 5 minutes to hours, we can write, 5 minutes = y hours.
y = 5/60 hrs
y = 0.083 hrs
Now we know that speed can be found out using the formula, Speed=Distance/Time, We have found out that distance = 0.6km and time = 0.083 hrs. So, on substituting these values in the formula of speed, we get,
Speed = 0.6/ 0.083
= 6 × 1000 / 83 × 10
= 6000/ 830
= 600/83
= 7.2 km/h
Therefore, we get the speed of the man crossing a 600m long street in 5 minutes as 7.2km/h.
Hence, option (D) is the correct answer.
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