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:
213 comments Page 2 of 22.
Gajanan said:
3 months ago
Why it multiply with 18/5? Please explain.
(11)
Devendra rajput said:
3 months ago
Your Explanation is better than others. Thanks @Lavanya.
(4)
MERCY said:
4 months ago
How do we get 18/5? Please explain to me.
(18)
Raj said:
5 months ago
How 5/18 becomes 18/5? Anyone, please explain.
(15)
Shreeraksha H Bhandary said:
5 months ago
Speed = distance ÷ time.
= 600÷(5×60),
= 2 m/s.
Speed in km/hr:
= 2×(18/5),
= 7.2 km/hr.
= 600÷(5×60),
= 2 m/s.
Speed in km/hr:
= 2×(18/5),
= 7.2 km/hr.
(10)
Kauma shube said:
6 months ago
Thanks for the explanation @Lavanya.
(3)
Kauma shube said:
6 months ago
Thanks all for explaining the answer.
(2)
Rama said:
6 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)
Mahesh said:
8 months ago
0.6 * 60 ÷ 5 = 7.2 is the answer.
(21)
Lavanya said:
8 months ago
Given:
Distance = 600m(m=meter)
Time = 5minutes.
Formula:
=> speed = distance/time
=> 1 hour = 60 minutes
=> 1 Km = 1000m.
Speed = 600/5.
120m(minutes).
(To convert minutes into hours we need to multiply the number by 60).
speed = 120 * 60 = 7200h(an hour)
(To convert meters into kilometres we need to divide the number by 1000)
speed = 7200/1000 = 7.2km/h (kilometre per hour)
Distance = 600m(m=meter)
Time = 5minutes.
Formula:
=> speed = distance/time
=> 1 hour = 60 minutes
=> 1 Km = 1000m.
Speed = 600/5.
120m(minutes).
(To convert minutes into hours we need to multiply the number by 60).
speed = 120 * 60 = 7200h(an hour)
(To convert meters into kilometres we need to divide the number by 1000)
speed = 7200/1000 = 7.2km/h (kilometre per hour)
(85)
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