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 20 of 22.
Khushboo Rahman said:
7 years ago
Easy way to solve this problem.
Speed=Distance/Time.
Now,
1km=1000m,
1/1000km=1m,
600/1000km=600m,
i.e. 0.6km=600m,
1hr=60min,
1/60hr=1min,
5/60hr=5min, i.e. 0.083hr=5min.
speed=distance/time.
=(600/5)m/sec.
=(0.6/0.083)km/hr.
speed=7.22km/hr.
Speed=Distance/Time.
Now,
1km=1000m,
1/1000km=1m,
600/1000km=600m,
i.e. 0.6km=600m,
1hr=60min,
1/60hr=1min,
5/60hr=5min, i.e. 0.083hr=5min.
speed=distance/time.
=(600/5)m/sec.
=(0.6/0.083)km/hr.
speed=7.22km/hr.
Priya said:
7 years ago
Speed = dis/time so speed = 600/5 convert it directly to km/hr (1 km= 1000m and1 hour = 60 minutes).
So, speed = 600*60/5*1000 = 7.2km/hr.
So, speed = 600*60/5*1000 = 7.2km/hr.
Reddy said:
7 years ago
Thanks, @Priya.
Your explanation simple and good.
Your explanation simple and good.
Prakash said:
7 years ago
= D/t
= 600/5 * 60 * 18/5,
= 7.2.
= 600/5 * 60 * 18/5,
= 7.2.
Snehql said:
7 years ago
Can anyone please help me for solving this question?
A boat goes 8 km downstream in 40 min and returns to the same point in 1 hr how much time will it take to cover a distance of 144 km in still water?
A boat goes 8 km downstream in 40 min and returns to the same point in 1 hr how much time will it take to cover a distance of 144 km in still water?
Chandru said:
7 years ago
@Snehql.
It took 15 hrs.
It took 15 hrs.
Milesh bariya said:
6 years ago
Simply,
(2/1000) = 0.002km/sec
Then (0.002*3600) = 7.2km/sec.
Note: small quantity to big quantity then divide i.e; 2/1000 = meter into kms.
(2/1000) = 0.002km/sec
Then (0.002*3600) = 7.2km/sec.
Note: small quantity to big quantity then divide i.e; 2/1000 = meter into kms.
Ronak said:
6 years ago
How to calculate 2 * 18/5? Please explain in detail.
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.
Sidh said:
6 years ago
Explain in a simple way.
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