# A train takes 9 sec to cross a pole. If the speed of the train is 48 kmph, then length of the train is?

A. 150 m

B. 120 m

C. 90 m

D. 80 m

**Answer: Option B **

__Solution(By Examveda Team)__

$$\eqalign{
& {\text{Time taken by train to cross a pole}} \cr
& {\text{ = 9 sec}} \cr
& {\text{Distance covered in crossing a pole}} \cr
& {\text{ = length of train}} \cr
& {\text{Speed of the train}} \cr
& {\text{ = 48 km/h}} \cr
& = \left( {\frac{{48 \times 5}}{{18}}} \right)m/\sec \cr
& = \frac{{40}}{3}m/\sec \cr
& \therefore {\text{Length of the train}} \cr
& {\text{ = Speed }} \times {\text{Time}} \cr
& {\text{ = }}\frac{{40}}{3} \times 9 \cr
& {\text{ = 120 m}} \cr} $$ Related Questions on Problems on Trains

A. 120 metres

B. 180 metres

C. 324 metres

D. 150 metres

A. 45 km/hr

B. 50 km/hr

C. 54 km/hr

D. 55 km/hr

A. 200 m

B. 225 m

C. 245 m

D. 250 m

## Join The Discussion