A train running at a speed of 84 kmph crosses a man running at a speed of 6 kmph in the opposite direction in 4 seconds. What is the length of the train (in meters)?

180

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120

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160

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150

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None of these

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Solution

The correct option is E
None of these

Length of the train = $(84 + 6) \times \frac{1000}{3600} \times 4 = 100 m$

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