Train K crosses a stationary Train L in 50 seconds and a pole in 20 seconds with the same speed The ...........

Quantitative Aptitude ( CCS) Problems on trains

Train K crosses a stationary Train L in 50 seconds and a pole in 20 seconds with the same speed. The length of the Train K is 240 meters. What is the length of stationary Train L ?

120 mts

240 mts

360 mts

420 mts

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Explanation:

Speed of the Train K is given by s = d/t = 240/20 = 12 m/s
Distance covered by Train K in 50 seconds = 12 x 50 = 600 mts.
But it crosses Train L in 50 seconds
Therefore, the length of the Train L is = 600 - 240 = 360 mts

Hence, option 3 is the correct answer.

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