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

Answer: Option C

$$\begin{array}{rl}& \text{Speed}\\ & \text{ = }\left(\frac{132}{6}\right)\text{m/sec}\\ & \text{ = }\left(22\times \frac{18}{5}\right)\text{km/sec}\\ & \text{ = 79}\text{.2 km/hr}\end{array}$$