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?
3.6
7.2
8.4
10
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:
220 comments Page 6 of 22.

Barkat Shah said:   3 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.
(9)

Dffse said:   9 months ago
Can anyone explain it clearly?
(8)

Shaik Rehman said:   7 months ago
s = d/t.
d = 600m,
t = 5min,
s = 600/5 * 60,
= 2 m/sec.
2 * 18/5.
= 7.2.
(8)

Mdwasir said:   3 months ago
s = d/t.
600/300 m/sec,
= 2 m/sec.
2 * 18/5 km/hr.
s = 36/5 kmph.
(8)

Sathish M said:   2 months ago
Thanks all for explaining.
(8)

Hackie said:   4 weeks ago
600m = 0.6km.
t = 5min
means(5/60) = 1/12.
then 0.6/1/12,
=7.2.
(8)

Mansi tyagi said:   2 years 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.
(7)

Afsa.S said:   4 years ago
Should we convert 5 minutes to secs? Anyone, explain me.
(5)

Abhinaya said:   1 year ago
Speed = dis/time.
Dis = 600.
Speed = (600÷5*60) = 2m/sec.
We need speed km/hr 18/5.
2*18÷5 = 7.2km/hr.
(4)

Devendra rajput said:   10 months ago
Your Explanation is better than others. Thanks @Lavanya.
(4)


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