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 7 of 21.
Advait Nandeshwar said:
1 decade ago
Speed = 600 m/5 min.
= 600 m/5*60 sec.
= 600 m/300 sec.
= 2 m/s.
Therefore,
By applying formula.
x km/hr = 18/5 x m/s.
x km/hr = 18/5 x 2.
x km/hr = 36/5.
x km/hr = 7.2.
= 600 m/5*60 sec.
= 600 m/300 sec.
= 2 m/s.
Therefore,
By applying formula.
x km/hr = 18/5 x m/s.
x km/hr = 18/5 x 2.
x km/hr = 36/5.
x km/hr = 7.2.
SUSHIL PATHAK said:
1 decade ago
Hi,
I know that I'm late. But I'm fresher.
Answer:
Option B.
Explanation:
Distance = 600 m.
Time = 5 min.
Speed = 600/5 = 120 m/min or 120*60/1000 = 7.2 km/hr.
I know that I'm late. But I'm fresher.
Answer:
Option B.
Explanation:
Distance = 600 m.
Time = 5 min.
Speed = 600/5 = 120 m/min or 120*60/1000 = 7.2 km/hr.
Sumithra said:
1 decade ago
Good. And why multiply 60 in 2?
Sagar said:
1 decade ago
600/5 = 1000/60. Because we need answer in km/hr.
1km/1hr = 1000 mtrs/60 mins.
There fore cross cross multiplication of 600/5 = 1000/60.
You will get 36000/5000 = 7.2 is the answer. Any doubts?
1km/1hr = 1000 mtrs/60 mins.
There fore cross cross multiplication of 600/5 = 1000/60.
You will get 36000/5000 = 7.2 is the answer. Any doubts?
Urbasi said:
1 decade ago
Thank you so much to all of you. Your suggestion gives very simple and easy idea.
Priya said:
10 years ago
Why don't we use the no 12 or 16 instead of 18?
Firdosh said:
10 years ago
How get 5*60 = 2?
Anamika said:
10 years ago
What's that conversion formula come from the real real formula was 1000/(60*60)?
RupamRD said:
10 years ago
In 5 minutes the person crosses 600 meter.
In 1 minute the person crosses 600/5 meter.
In 60 minutes the person crosses (600*60)/5 = 7200 meter = 7.2 km.
In 1 minute the person crosses 600/5 meter.
In 60 minutes the person crosses (600*60)/5 = 7200 meter = 7.2 km.
Deepa said:
10 years ago
I am very confused in step 2.
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