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 15 of 21.
Naidu said:
9 years ago
The speed is 600 m/5 min.
So, 5 min = 600 meters.
(1 hour = 12 * 5 min = 60 mins).
5min * 12 = 600m * 12.
60 minutes = 7200 meters.
So, 1 hour = 7000 m + 200 m.
1 hour = 7 km + 200 m.
= 7.2 km.
So, 5 min = 600 meters.
(1 hour = 12 * 5 min = 60 mins).
5min * 12 = 600m * 12.
60 minutes = 7200 meters.
So, 1 hour = 7000 m + 200 m.
1 hour = 7 km + 200 m.
= 7.2 km.
Pankaj kumar verma said:
9 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.
Reehana said:
9 years ago
When we convert km/hr to m/s it's 18/5 and when we convert m/s to km/he it's 5/18.
Maureenash said:
9 years ago
Thanks for the clear and different solution.
Riyadhksd said:
9 years ago
I will explain you in a simple way.
Distance/time into 3.6,
So, 600/300 * 3.6 = 7.2,
3.6 = 3600/1000.
Distance/time into 3.6,
So, 600/300 * 3.6 = 7.2,
3.6 = 3600/1000.
Sathiyaraj said:
9 years ago
Man crosses 600 meters in 5 minutes.
12 x 5 = 60 minutes => 1 hour,
So, 600 x 12 = 7200 meters/hr =>7.2 km/hr
12 x 5 = 60 minutes => 1 hour,
So, 600 x 12 = 7200 meters/hr =>7.2 km/hr
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.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers