Home » Aptitude » Speed, Time and Distance » Question
  1. The lengths of a train and that of a platform are equal. If with a speed of 90 km/hr the train
    crosses the platform in one minute, then the length of the train (in metres) is
    1. 500
    2. 600
    3. 750
    4. 900
Correct Option: C

Let, length of train = length of platform = x metre
Speed of train = 90 kmph

=
90 × 5
m/sec.
18

= 25 m/sec.
∴  Speed of train =
Length of platform and train
Time taken in crossing

⇒  25 =
2x
⇒ 2x = 25 × 60
60

⇒  x =
25 × 60
= 750 metre
2



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