Multiple choice

The length of a train and that of a platform are equal. If with a speed of 90 kmph the train crosses the platform in one minute, then the length of the platform is एक ट्रेन और प्लेटफार्म की लम्बाई समान है | यदि 90 किमी./घंटा की रफ़्तार से गति करती हुई ट्रेन प्लेटफार्म को 1 मिनट में पार करती है, तो प्लेटफार्म की लम्बाई है

  1. 500

  2. 600

  3. 750

  4. 900
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Distance covered = train length + platform length = L + L = 2L. Speed = 90 kmph = 90×(5/18) = 25 m/s. Time = 1 minute = 60 seconds. Distance = 25×60 = 1500 m. So 2L = 1500, L = 750 m. Options A (500), B (600), D (900) don't match.

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