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:
208 comments Page 5 of 21.
Dinen said:
1 decade ago
Very simple,
In 5 mins he covers 600 m.
In 1 min he will cover 600/5.
In 60 mins he will cover (600*60) /5 = 7200 m i.e. 7. 2 km.
In 5 mins he covers 600 m.
In 1 min he will cover 600/5.
In 60 mins he will cover (600*60) /5 = 7200 m i.e. 7. 2 km.
Ravi saini said:
1 decade ago
In 1 km -1000 m
1 hr.-60 min.
1 min.-60 sec.
So, 1 hr.-3600 sec.
metre\hour to k.m\sec.
To do it, 3600.metr\1000.sec.
Now divide 3600 to 1000, we get 18\5.
1 hr.-60 min.
1 min.-60 sec.
So, 1 hr.-3600 sec.
metre\hour to k.m\sec.
To do it, 3600.metr\1000.sec.
Now divide 3600 to 1000, we get 18\5.
Manoj said:
1 decade ago
600 mtr in 5 minutes so
1 km = 1000 mtr
(600/5=120 mtrs per minute) so
1 hour = 60 minutes so
(60*120=7200 mtrs)
Here
(7200/1000)= 7.2 km/hr.
1 km = 1000 mtr
(600/5=120 mtrs per minute) so
1 hour = 60 minutes so
(60*120=7200 mtrs)
Here
(7200/1000)= 7.2 km/hr.
Sekhar said:
1 decade ago
t=5 Mins, 5*60=300sec(1min=60 sec)
SPEED=DISTANCE/TIME
=600/300
=2m/s.
Convert m/s to km/sec by formula
2*18/5
=36/5
=7.2km/hr.
SPEED=DISTANCE/TIME
=600/300
=2m/s.
Convert m/s to km/sec by formula
2*18/5
=36/5
=7.2km/hr.
RAJWINDR SINGH said:
1 decade ago
Answer: Option B.
Explanation:
Distance = 600 m.
Time = 5 min.
Speed = 600/5 = 120m/min or 120*60/1000 = 7.2km/hr.
Explanation:
Distance = 600 m.
Time = 5 min.
Speed = 600/5 = 120m/min or 120*60/1000 = 7.2km/hr.
Santhosh said:
1 decade ago
2*60(min)*60(hr)/1000.
Then we get the answer 36/10(or)18/5*2.
Answer=7.2km/hr.
Then we get the answer 36/10(or)18/5*2.
Answer=7.2km/hr.
Indu said:
1 decade ago
Speed = distance/time (or) m/sec.
1 min = 60 sec; 5 min = 5*60 sec = 300 sec.
Speed(x) = 600/300.
= 2m/sec.
x*(m/sec) = (x*18/5)km/hr.
= (2*18/5)km/hr.
= 36/5.
= 7.2.
1 min = 60 sec; 5 min = 5*60 sec = 300 sec.
Speed(x) = 600/300.
= 2m/sec.
x*(m/sec) = (x*18/5)km/hr.
= (2*18/5)km/hr.
= 36/5.
= 7.2.
Sandhyasasi said:
1 decade ago
600/5*60 = 2 m/sec.
Converting to km/h,
= 2*18/5.
= 7.2 km/h.
Converting to km/h,
= 2*18/5.
= 7.2 km/h.
Sameer kashmiri said:
1 decade ago
1st step:- change 600m into km.
600/1000 = 0.6.
2nd step:- change time 5 minutes into hrs.
5/60 = 0.0833.
You know,
speed = distance/time.
Now put the values,
Speed = 0.6/0.0833.
= 7.2.
600/1000 = 0.6.
2nd step:- change time 5 minutes into hrs.
5/60 = 0.0833.
You know,
speed = distance/time.
Now put the values,
Speed = 0.6/0.0833.
= 7.2.
Tejha said:
1 decade ago
s = d/t.
s = 600m/5min.
120m/1min.
60*120/60*1.
7200m/60min .
7.2km/1hr.
s = 600m/5min.
120m/1min.
60*120/60*1.
7200m/60min .
7.2km/1hr.
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