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 5 of 21.
Anu said:
10 months 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:
4 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:
1 decade 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:
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.
Jhanu 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.
Seshu said:
1 decade ago
In above problem clearly given that for 5 minutes travelled distance is 600 mtrs.multiplied with 12 on both sides then we get one hour travelled distance i.e. 12*5mnts is 12*600mts = 7.2 km.
Vinoth said:
1 decade ago
A person is running at a speed of 18km/hr After one min a bomb blasts . Sound travels at 330m/s. How long does the man run before he cud he hear the sound??
How to solve this question?
How to solve this question?
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.
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