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A train of length 150 meters takes 40.5 seconds to cross a tunnel of length 300 meters. What is the speed of the train in km/hr?

113.33
226.67
340
466.67

Answer:- 1

Explanation:-

Solution:

\begin{aligned} Speed  = (\frac{150 + 300}{40.5}) m / \sec \\ = (\frac{450}{40.5} \times \frac{18}{5}) k m / h r \\ = 40 k m / h r . \end{aligned}

$\eqalign{ & {\text{Speed = }}\left( {\frac{{150 + 300}}{{40.5}}} \right)m/\sec \cr & = \left( {\frac{{450}}{{40.5}} \times \frac{{18}}{5}} \right)km/hr \cr & = 40km/hr. \cr}$

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", "dateCreated": "7/24/2019 10:09:12 AM", "author": { "@type": "Person", "name": "Nitin Sir" } }, "suggestedAnswer": { "@type": "Answer", "text": "

Solution:

\begin{aligned} Speed  = (\frac{150 + 300}{40.5}) m / \sec \\ = (\frac{450}{40.5} \times \frac{18}{5}) k m / h r \\ = 40 k m / h r . \end{aligned}

$\eqalign{ & {\text{Speed = }}\left( {\frac{{150 + 300}}{{40.5}}} \right)m/\sec \cr & = \left( {\frac{{450}}{{40.5}} \times \frac{{18}}{5}} \right)km/hr \cr & = 40km/hr. \cr}$ ", "dateCreated": "7/24/2019 10:09:12 AM" } }

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