A train of length 150 metres takes 40.5 seconds to cross a tunnel of length 300 metres. What is the speed of… · ABC26GN3881
Subject: General Aptitude · Chapter: Problems on Trains
A train of length 150 metres takes 40.5 seconds to cross a tunnel of length 300 metres. What is the speed of the train in km/hr?
(a)13.33
(b)26.67
(c)40
(d)66.67
Answer
Explanation
Speed $=\left(\frac{150+300}{40.5}\right) \mathrm{m} / \mathrm{sec}$ $$=\left(\frac{450}{40.5} \times \frac{18}{5}\right) \mathrm{km} / \mathrm{hr}=40 \mathrm{km} / \mathrm{hr} .$$
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