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 5 of 22.
Arun kumar said:
2 years ago
How did we get 18/5? Please explain.
(38)
Xiyoz said:
2 years ago
Speed = Distance/Time.
600m Distance.
Time 5 Minute = 300 Seconds.
We need speed km/hr, it means 18/5.
600/300*18/5 = 36/5.
Ans = 7.2.
600m Distance.
Time 5 Minute = 300 Seconds.
We need speed km/hr, it means 18/5.
600/300*18/5 = 36/5.
Ans = 7.2.
(52)
Abhigyan Mund said:
2 years ago
We know,
1 min = 60 sec.
5 min = 60 * 5 = 300 sec.
A/c to question;
Distance = 600 m.
Time = 300 Sec.
Now speed = Distance/ Time = 600/ 300 = 2 m/s.
Converting km to meter, multiply with 18/5.
Now, 2*18/5 = 36/5 = 7.2 km/hr.
1 min = 60 sec.
5 min = 60 * 5 = 300 sec.
A/c to question;
Distance = 600 m.
Time = 300 Sec.
Now speed = Distance/ Time = 600/ 300 = 2 m/s.
Converting km to meter, multiply with 18/5.
Now, 2*18/5 = 36/5 = 7.2 km/hr.
(49)
Browin said:
2 years ago
S = d/t.
600m = 0.6km.
5minutes = 5/60 = 0.083hr,
S = 0.6/0.083,
= 7.2km/hr.
600m = 0.6km.
5minutes = 5/60 = 0.083hr,
S = 0.6/0.083,
= 7.2km/hr.
(43)
Reena roy said:
2 years ago
How did 18 get ( 2*18/5)?
(44)
Prashanth said:
2 years ago
D = S*T.
D = 600m,
T = 5 mints => 5 * 60 = 300 sec.
S = D/T = 600/300 = 2 m/sec.
convert m/sec to km/hr,
2*18/5 = 7.5.
D = 600m,
T = 5 mints => 5 * 60 = 300 sec.
S = D/T = 600/300 = 2 m/sec.
convert m/sec to km/hr,
2*18/5 = 7.5.
(33)
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)
R Selva said:
2 years ago
600/5=120m
60*120=7200
7.2km.
Correct me, If I am wrong.
60*120=7200
7.2km.
Correct me, If I am wrong.
(93)
Bash Richard said:
3 years ago
Distance= 600m
= 0.6km
Time = 5mins.
=5/60hrs.
Speed = D/T.
= 0.6/0.08333.
= 7.2km/hr.
So, Speed = 7.2km/hr.
= 0.6km
Time = 5mins.
=5/60hrs.
Speed = D/T.
= 0.6/0.08333.
= 7.2km/hr.
So, Speed = 7.2km/hr.
(39)
Samridhi said:
3 years ago
Distance = 600m = 0.6 km.
Time=5 mins= 5/60 hours.
Speed = distance/time = (0.6*60)/5 km/hr.
Speed= 7.2 km/hr.
Time=5 mins= 5/60 hours.
Speed = distance/time = (0.6*60)/5 km/hr.
Speed= 7.2 km/hr.
(30)
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