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1. A train 132 m long passes a telegraph pole in 6 seconds. Find the speed of the train?

A. 70 km/hr

B. 72 km/hr

C. 79.2 km/hr

D. 80 km/hr

Solution:

\begin{aligned} Speed \\ = (\frac{132}{6}) m/sec \\ = (22 \times \frac{18}{5}) km/sec \\ =  79 .2 km/hr \end{aligned}

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