Problems on Trains - Arithmetic Aptitude Questions and Answers

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A train speeds past a pole in 15 seconds and a platform 100 m long in 25 seconds. Its length is:

100 m

125 m

130 m

150 m

Answer : Option D

Explanation :

Let the length of the train be x meters and its speed be y m/sec.

They, x / y = 15 => y = x/15

x + 100 / 25 = x / 15

x = 150 m.

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