Multiple choice

How many seconds will a 500 meter long train moving with speed of 63 k/hr to cross 9 man walking with speed of 3 km/h in the same direction of train? एक 500 लम्बी रेल गाड़ी 63 किमी/घंटा की चाल से उसी दिशा में 3 किमी/घंटे की चाल से जाते हुए व्यक्ति को कितने सेकेण्ड में पार करेगी?

  1. 40

  2. 30

  3. 50

  4. 28
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Train length = 500 m, train speed = 63 km/h, man speed = 3 km/h (same direction). Relative speed = 63-3 = 60 km/h = 60×(5/18) = 50/3 m/s. Time = 500/(50/3) = 30 seconds. Options A, C, D are miscalculations or wrong relative speeds.

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