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UPSC CDS Math Speed, Time and Distance Questions
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© examsnet.com
Question : 5
Total: 53
A train 100 m long passes a platform 100 m long in 10 seconds. The speed of the train is
[2018 CDS-II]
36 kmph
45 kmph
54 kmph
72 kmph
Validate
Solution:
∵
Speed
=
Distance
Time
Speed of train
=
Length of train + Length of platform
Time taken by train to cross the platform
=
100
+
100
10
=
200
10
=
20
m/s
=
20
×
18
5
=
72
km/h
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