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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

Answer: Option C

Solution(By Examveda Team)

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

This Question Belongs to Arithmetic Ability >> Problems On Trains

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