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:
209 comments Page 4 of 21.
Raj said:
3 months ago
How 5/18 becomes 18/5? Anyone, please explain.
(15)
Shashi Kumar said:
3 years ago
Convert distance to kilo meters.
So, 600/1000 = 6/10.
And, convert minutes to hours.
So, 5/60.
6/10/5/60 = 36/5 answer is 7.2
So, 600/1000 = 6/10.
And, convert minutes to hours.
So, 5/60.
6/10/5/60 = 36/5 answer is 7.2
(14)
Nikita Pramanik said:
2 years ago
We have to convert meters per minute to kilometers per hour.
1 km = 1000 m
Therefore,
Speed = Distance/Time.
Speed = (600 m/5 min) * (60 min/1 hr) * (1 km/1000 m),
Speed = 12 km/hr.
Therefore, the person's speed is 12 km/hr.
1 km = 1000 m
Therefore,
Speed = Distance/Time.
Speed = (600 m/5 min) * (60 min/1 hr) * (1 km/1000 m),
Speed = 12 km/hr.
Therefore, the person's speed is 12 km/hr.
(14)
Deepanshu said:
2 years ago
How did we get 18/5?
(14)
P Lakshmi said:
2 years ago
Changing kmph to mps.
1km = 1000m.
Minute = 60sec.
1000/60×60 = 5/18.
Changing opposite mps to kmph is 18/5.
1km = 1000m.
Minute = 60sec.
1000/60×60 = 5/18.
Changing opposite mps to kmph is 18/5.
(14)
Rinose said:
1 year ago
It was a format when converted to m/s to km /hr use 18/5 and Km/hr to m/s use 5/18.
(13)
Ramani murugan said:
8 months ago
s = d/t.
d = 600m,
t = 5m.
600/5 * 60,
= 2 * 18/5,
= 2 * 3.2,
= 7.2.
d = 600m,
t = 5m.
600/5 * 60,
= 2 * 18/5,
= 2 * 3.2,
= 7.2.
(13)
Rama said:
5 months ago
Speed = Distance ÷ time.
Speed = 600÷(5×60).
Speed = 2 m/sec,
Now, convert into kmph.
i.e.,S = 2×(18÷5).
Then S = 7.2 kmph.
Speed = 600÷(5×60).
Speed = 2 m/sec,
Now, convert into kmph.
i.e.,S = 2×(18÷5).
Then S = 7.2 kmph.
(12)
Gajanan said:
2 months ago
Why it multiply with 18/5? Please explain.
(11)
Bijay rajak said:
3 years ago
1 hour 12 m - 5 = 60 minute = 1 HOUR,
Than 600 m - 12 = 7200 m.
Now convert km/hour,
Than required answer 7200/1000 = 7.2 km/hour.
Than 600 m - 12 = 7200 m.
Now convert km/hour,
Than required answer 7200/1000 = 7.2 km/hour.
(10)
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