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:
214 comments Page 5 of 22.
Logeshwari said:
2 years ago
1000 meter = 1 kilometer.
3600 seconds = 1 hour.
1000 meter/3600second=1 kilometer/1 hour.
5 meter/18 second = 1 kilometer/1 hour.
3600 seconds = 1 hour.
1000 meter/3600second=1 kilometer/1 hour.
5 meter/18 second = 1 kilometer/1 hour.
(10)
Shreeraksha H Bhandary said:
5 months ago
Speed = distance ÷ time.
= 600÷(5×60),
= 2 m/s.
Speed in km/hr:
= 2×(18/5),
= 7.2 km/hr.
= 600÷(5×60),
= 2 m/s.
Speed in km/hr:
= 2×(18/5),
= 7.2 km/hr.
(10)
Mansi tyagi said:
1 year ago
Speed = 600 m/sec.
=> 600/ 5 x 60,
= 2 m/sec.
Converting m/sec to km/hr (see important formulas section)
2 multiply 3600/1000,
= 18 km/hr.
Then
= 2 x18/5 km/hr
= 7.2 km/hr.
=> 600/ 5 x 60,
= 2 m/sec.
Converting m/sec to km/hr (see important formulas section)
2 multiply 3600/1000,
= 18 km/hr.
Then
= 2 x18/5 km/hr
= 7.2 km/hr.
(7)
Majji deepika said:
3 months ago
Given data.
Distance(d) = 600m
Time(t) = 5m(converting into sec)
t = 5 * 60 = 300s.
Find : speed = ?(in km/hr)
Now apply the formulaic;
Speed =distance/time
Speed=600/300=2m/s
So, over answer is km/hr.
Now the formula is (a m/s=a*(18/5)km/hr)
Now apply
2m/s = 2 * (18/5)km/hr.
Speed = 7.2km/hr.
Distance(d) = 600m
Time(t) = 5m(converting into sec)
t = 5 * 60 = 300s.
Find : speed = ?(in km/hr)
Now apply the formulaic;
Speed =distance/time
Speed=600/300=2m/s
So, over answer is km/hr.
Now the formula is (a m/s=a*(18/5)km/hr)
Now apply
2m/s = 2 * (18/5)km/hr.
Speed = 7.2km/hr.
(7)
Hello said:
2 months ago
@Mercy and @Raj.
18/5 is used when we convert metres per second to km per hour. And 5/18 is used when we convert km per hour to metres per second.
It is a shortcut. As we see 5km/hr to m/sec.
We usually do 5* (1000/60*60) =5* (1000/3600) =5* (10/36) =5* (5/18).
Thus, while converting from km/hr to m/s, using 5/18 is simple.
18/5 is used when we convert metres per second to km per hour. And 5/18 is used when we convert km per hour to metres per second.
It is a shortcut. As we see 5km/hr to m/sec.
We usually do 5* (1000/60*60) =5* (1000/3600) =5* (10/36) =5* (5/18).
Thus, while converting from km/hr to m/s, using 5/18 is simple.
(7)
Harsh Mestry said:
1 month ago
The distance travelled is 600m.
He takes 5 min.
Convert min into sec: 5 x 60 = 300 sec.
Speed in m/s = speed = distance/time = 600/300 = 2m/s,
Convert m/s to km/h = 1m/s is considered as 3.6km/h.
So, 2 x 3.6
= 7.2km/h.
He takes 5 min.
Convert min into sec: 5 x 60 = 300 sec.
Speed in m/s = speed = distance/time = 600/300 = 2m/s,
Convert m/s to km/h = 1m/s is considered as 3.6km/h.
So, 2 x 3.6
= 7.2km/h.
(7)
Dffse said:
3 months ago
Can anyone explain it clearly?
(6)
Nomin said:
3 weeks ago
@All.
Here is my solution:
600m in 5 minutes.
1hr = 60 minutes,
5 ÷ 60 = 12,
12 x 600 = 7200.
Answer is 7.2 km/hr.
Here is my solution:
600m in 5 minutes.
1hr = 60 minutes,
5 ÷ 60 = 12,
12 x 600 = 7200.
Answer is 7.2 km/hr.
(6)
Afsa.S said:
3 years ago
Should we convert 5 minutes to secs? Anyone, explain me.
(5)
Anom said:
4 weeks ago
1000 m = 1 km.
60 min = 1 hr,
In, 60 min × 600 m = 36000 m.
36000 m = 36 km.
Now, 36 (km) ÷ 5 (min) = 7.2.
So, 7.2 Km/hr.
60 min = 1 hr,
In, 60 min × 600 m = 36000 m.
36000 m = 36 km.
Now, 36 (km) ÷ 5 (min) = 7.2.
So, 7.2 Km/hr.
(5)
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