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:
215 comments Page 8 of 22.
Pio Myria said:
5 years ago
Step-1: We that distance =600m,time is 5min.
Step-2: Formula=speed=distance/time,
600m/5* 60 = 2m/s.
Step -3 : convert m/s to km/hr.
2*18/5=7.2km/hr ans.
Step-2: Formula=speed=distance/time,
600m/5* 60 = 2m/s.
Step -3 : convert m/s to km/hr.
2*18/5=7.2km/hr ans.
Adrija Das said:
5 years ago
Why divided by 60?
If we want to convert minute to seconds then don't we have to multiply the minute * 60? Please anyone explain.
If we want to convert minute to seconds then don't we have to multiply the minute * 60? Please anyone explain.
Mao said:
6 years ago
The answer is 7.2. Agree with the given answer.
Vishwa said:
6 years ago
@Sanju,
They said that 600m covered in 5 mins,
How much will he cover in 1hour? right.
just cal. it as
1hr= 60mins right,
Given in 5mins=600m then,
in 60mins=?
Calculate and find out one min distance that is 600/5=120m per min he travels.
So then for 60mins=60*120=7200m i.e, 7.2km.
They said that 600m covered in 5 mins,
How much will he cover in 1hour? right.
just cal. it as
1hr= 60mins right,
Given in 5mins=600m then,
in 60mins=?
Calculate and find out one min distance that is 600/5=120m per min he travels.
So then for 60mins=60*120=7200m i.e, 7.2km.
Sanju said:
6 years ago
How it is 7.2 km/her?
Anyone explain that.
Anyone explain that.
Akash said:
6 years ago
Simple(no formulas).
600m/5 min = 120m per 1min.
1hr = 60min.
120x60 = 7200m .
7200m = 7.20km/hr.
600m/5 min = 120m per 1min.
1hr = 60min.
120x60 = 7200m .
7200m = 7.20km/hr.
Pallavi said:
6 years ago
Formula(x*18/5)km/hr.
Sidh said:
6 years ago
Explain in a simple way.
Tobzs said:
6 years ago
We can directly divide 60/5 and multiply with 600 and divide it with 1000.
60/5*600/100 = 7.2.
60/5*600/100 = 7.2.
Ronak said:
6 years ago
How to calculate 2 * 18/5? Please explain in detail.
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