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:
226 comments Page 3 of 23.
UMAKANT CHAUDHARY said:
1 year ago
Let's Convert distance metres to km;
600/1000 km = 0.6km.
Now, same as time, 5/60 = 1/12 hr.
Now speed = distance/time.
= 0.6/(1/12),
= 0.6 * 12,
= 7.2 km.
600/1000 km = 0.6km.
Now, same as time, 5/60 = 1/12 hr.
Now speed = distance/time.
= 0.6/(1/12),
= 0.6 * 12,
= 7.2 km.
(35)
Prashanth said:
3 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)
Vignesh said:
3 years ago
Good explanation. Thanks, everyone.
(32)
Nisha said:
3 years ago
600m = 5 minutes, 120m = 1 minutes (600/5),
1 hour = 60 minutes,
7200m = 60 minutes (120*60),
1000m = 1 km.
7200m = 7.2 km.
1 hour = 60 minutes,
7200m = 60 minutes (120*60),
1000m = 1 km.
7200m = 7.2 km.
(31)
Samridhi said:
4 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)
Anom said:
1 year ago
1000 m = 1 km.
60 min = 1 hr,
In, 60 min × 600 m = 36000 m.
36000 m = 36 km.
Now, 36 (km) ÷ 5 (min) = 7.2.
So, 7.2 Km/hr.
60 min = 1 hr,
In, 60 min × 600 m = 36000 m.
36000 m = 36 km.
Now, 36 (km) ÷ 5 (min) = 7.2.
So, 7.2 Km/hr.
(30)
Hackie said:
6 months ago
600m = 0.6km.
t = 5min
means(5/60) = 1/12.
then 0.6/1/12,
=7.2.
t = 5min
means(5/60) = 1/12.
then 0.6/1/12,
=7.2.
(28)
Someswar Mazumdar said:
4 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.
(26)
Anu said:
2 years ago
@Vijaya Lakshmi.
it is how we get 18/5.
1 km = 1000m.
1 km/h = 1000m/h.
= 1000/60 m/min.
= 1000/(60*60) m/s.
= 1000/3600m/s.
= 5/18 m/s.
Similarly,
1 m/s = 18/5 km/h.
it is how we get 18/5.
1 km = 1000m.
1 km/h = 1000m/h.
= 1000/60 m/min.
= 1000/(60*60) m/s.
= 1000/3600m/s.
= 5/18 m/s.
Similarly,
1 m/s = 18/5 km/h.
(24)
DRIBAREO DOREEN said:
10 months ago
How does the 18 come about? Please explain.
(23)
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers