ABC26GN3869 · Problems on Trains

Subject: General Aptitude · Chapter: Problems on Trains · Exam: · Marks: · Difficulty:

In what time will a train 100 metres long cross an electric pole, if its speed be144 km / hr?

(a)2.5 seconds

(b)4.25 seconds

(c)5 seconds

(d)12.5 seconds

Answer

Answer (as printed): A

Explanation

Speed $=\left(144 \times \frac{5}{18}\right) \mathrm{m} / \mathrm{sec}=40 \mathrm{m} / \mathrm{sec}$. $$\text { Time taken }=\left(\frac{100}{40}\right) \mathrm{sec}=2.5 \mathrm{sec} .$$

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