Aptitude - Time and Distance - Discussion
Discussion Forum : Time and Distance - General Questions (Q.No. 1)
1.
A person crosses a 600 m long street in 5 minutes. What is his speed in km per hour?
Answer: Option
Explanation:
| Speed = |  |
600 |  m/sec. |
| 5 x 60 |
= 2 m/sec.
Converting m/sec to km/hr (see important formulas section)
| = | |
2 x | 18 | |
km/hr |
| 5 |
= 7.2 km/hr.
Discussion:
214 comments Page 16 of 22.
Bukhari said:
9 years ago
It is very simple. If someone covers a distance of 600 meters in 5 minutes then in 1hour (60 minutes) he will cover a distance is,
600 metre = 5 minutes.
Multiplying with 12 both sides.
600 x 12 = 5 x 12,
7200 m = 60 minutes (1 hour),
7200/1000 m = 1 hour,
7.2 km in one hour.
So, speed is 7.2 km/hour.
600 metre = 5 minutes.
Multiplying with 12 both sides.
600 x 12 = 5 x 12,
7200 m = 60 minutes (1 hour),
7200/1000 m = 1 hour,
7.2 km in one hour.
So, speed is 7.2 km/hour.
Jjtt said:
9 years ago
Can someone explain where the 5 and 8 came from? I understand the formula but the 5 and 8 are throwing me off.
Kiranmaahi said:
9 years ago
@Digant.
Thank you so much I understood your explanation.
Thank you so much I understood your explanation.
Minalo said:
9 years ago
@Digant. I don't get where you get 18 from? Please explain me.
Prince said:
9 years ago
@Minalo.
If you want to change in km then multiply the value with 18/5.
If you want to change in km then multiply the value with 18/5.
Mohite Kallappa said:
9 years ago
All values is used in above example.
S = d/t, ( 600/5 * 60) m/sec.
Then convert m/ sec into km/hr.
Suppoes,
km/hr = s.
1000/3600 = 2.
5/18 = 2.
= 2 * 18/5.
= 7.2 km/hr.
S = d/t, ( 600/5 * 60) m/sec.
Then convert m/ sec into km/hr.
Suppoes,
km/hr = s.
1000/3600 = 2.
5/18 = 2.
= 2 * 18/5.
= 7.2 km/hr.
Rezuan said:
9 years ago
Distance = 600 m.
Time = 5 min = (5 * 60)s = 300 s.
Speed = ?
Speed = Distance/Time = 600m/300s = 2 m/s.
According to question we need to convert it m/s to km/hr.
m/sec=18/5 km/hr.
So, Speed = (2 * 18/5) km/hr.
Speed = 7.2 km/hr.
Time = 5 min = (5 * 60)s = 300 s.
Speed = ?
Speed = Distance/Time = 600m/300s = 2 m/s.
According to question we need to convert it m/s to km/hr.
m/sec=18/5 km/hr.
So, Speed = (2 * 18/5) km/hr.
Speed = 7.2 km/hr.
Samyuktha said:
9 years ago
Please make me understand this whole sum properly by anyone.
Jayalakshmi said:
9 years ago
Formula: speed = distance/time.
In question, given distance is in meter so convert the km and time given the minute so convert hours.
In question, given distance is in meter so convert the km and time given the minute so convert hours.
Sarah said:
9 years ago
Hi @Sundar.
Your explanation was really clear now I understand how this works thank you so much.
Your explanation was really clear now I understand how this works thank you so much.
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