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:
219 comments Page 5 of 22.
Aadarsh kumar said:
8 years ago
Distance= 600 metres.
Time= 5min
Speed =?
Speed = distance/time.
Speed = 600/5=120 m/sec.
Because,
1min=60min
120 min= 120*60 min= 7200 min.
Because,
1 km = 1000 metre.
7200 metre / 1000 metre =7.2 km/hr prove that.
Time= 5min
Speed =?
Speed = distance/time.
Speed = 600/5=120 m/sec.
Because,
1min=60min
120 min= 120*60 min= 7200 min.
Because,
1 km = 1000 metre.
7200 metre / 1000 metre =7.2 km/hr prove that.
Barkat Shah said:
2 months ago
Simple way to solve this;
Distance = 600m = 600/1000 = 0.6Km.
Time = 5 minutes = 0.08 hours.
Speed = ?.
Now apply the speed formula.
Speed = Distance/Time.
Put value;
Speed = 0.6km/0.08h.
= 7.5km/h.
Distance = 600m = 600/1000 = 0.6Km.
Time = 5 minutes = 0.08 hours.
Speed = ?.
Now apply the speed formula.
Speed = Distance/Time.
Put value;
Speed = 0.6km/0.08h.
= 7.5km/h.
(7)
Bdboy Hasan said:
10 years ago
In 5 minute he run 600 meter.
So, in 60 minute he run (600*60)/5 meter = 7200 meter.
So, speed is 7200/1000 = 7.2 kmph.
Note : We have to remember that we need to convert time in one hour and distance in km.
So, in 60 minute he run (600*60)/5 meter = 7200 meter.
So, speed is 7200/1000 = 7.2 kmph.
Note : We have to remember that we need to convert time in one hour and distance in km.
Anu said:
1 year 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)
Faria said:
5 years ago
1000m = 1 km.
So, 1 m =( 1/1000) km,
600 m = 600/1000, i.e 0.6 km,
In 5 minutes a person passes 0.6km,
In 1 minute a person passes 0.6/5,
In 60 minutes a person passes (0.6x60)/5, i.e 7.2 km.
Ans : 7.2 km.
So, 1 m =( 1/1000) km,
600 m = 600/1000, i.e 0.6 km,
In 5 minutes a person passes 0.6km,
In 1 minute a person passes 0.6/5,
In 60 minutes a person passes (0.6x60)/5, i.e 7.2 km.
Ans : 7.2 km.
(1)
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?
Shilpa said:
2 decades ago
Hi Sundar,.
All these days I wat getting why we should multiply with 60.
Your explaination regarding that 60 is going to be useful for me. Your expalination was clean and clear.
Thank you so much.
All these days I wat getting why we should multiply with 60.
Your explaination regarding that 60 is going to be useful for me. Your expalination was clean and clear.
Thank you so much.
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?
Naidu said:
10 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.
Jhanu said:
1 decade 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.
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