Question

a container 50 meters long passes a platform 100 meters long in 10 seconds. The speed of the container in km/hr is

options : 36, 48, 54, 25​

Answer 1

Explanation:

Answer:

If there is any Vertical Length or Distance, then we Add all Lengths to become Distance.

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$\underline{\bigstar\:\textsf{According to the given Question :}}$

$:\implies\sf Distance=Speed \times Time\\\\\\:\implies\sf (50 + 100) \:m = Speed \times 10 \:s\\\\\\:\implies\sf 150 \:m = Speed \times 10 \:s\\\\\\:\implies\sf \dfrac{150 \:m}{10 \:s} = Speed\\\\\\:\implies\sf Speed = 15 \:m/s\\\\\\:\implies\sf Speed = 15 \times \dfrac{18}{5}\:km/hr\\\\\\:\implies\sf Speed = 3 \times 18\:km/hr\\\\\\:\implies\underline{\boxed{\sf Speed = 54\:km/hr}}$

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$\therefore\:\underline{\textsf{Speed of the container is C) \textbf{54 km/hr}}}.$