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If 180 meter long train crosses a pole in 9 seconds, find the speed of train in kilometer/hour.

This question was previously asked in
CUET General Test 6th Oct 2022 Official Paper
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  1. 72 km/h
  2. 36 km/h
  3. 20 km/h
  4. 90 km/h

Answer (Detailed Solution Below)

Option 1 : 72 km/h
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Detailed Solution

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Given:

Length of the train = 180 m

Time = 9 seconds

Formula used:

Speed = Distance/Time

1 m/s = 18/5 km/hr

Calculation:

Speed = 180/9 m/s

⇒ (180/9) × (18/5) = 72 km/hr

∴ The speed of train in 72 kilometer/hour.

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