A train running at a speed of 120 kmph and it crosses a post in 54 seconds. What is the length of the train?

1620 m

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1980 m

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2160 m

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2340 m

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None of these

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Solution

The correct option is E
None of these

Speed of the train, v = 120 kmph= $\frac{120000}{3600}$ m/s = $\frac{100}{3}$ m/s

Time taken to cross, t = 54 s

Distance Covered, d = vt = $\frac{100}{3}$ $\times$ 54 = 1800 m

Distance covered is equal to the length of the train = 1800 m

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A train running at a speed of 120 kmph and it crosses a post in 54 seconds. What is the length of the train?

The correct option is E None of these Speed of the train, v = 120 kmph= 1200003600 m/s = 1003 m/s Time taken to cross, t = 54 s Distance Covered, d = vt = 1003 × 54 = 1800 m Distance covered is equal to the length of the train = 1800 m

The correct option is E
None of these

Speed of the train, v = 120 kmph= $\frac{120000}{3600}$ m/s = $\frac{100}{3}$ m/s

Time taken to cross, t = 54 s

Distance Covered, d = vt = $\frac{100}{3}$ $\times$ 54 = 1800 m

Distance covered is equal to the length of the train = 1800 m