How much time will a train of length 200 m moving at a speed of 72 kmph take to cross another train of length 300 m, moving at 36 kmph in the same direction ?

Question

নিচের অপশন গুলা দেখুন

• 58 sec
• 60 sec
• 62 sec
• 50 sec

Answer 1

সঠিক উত্তর হচ্ছে: 50 sec

ব্যাখ্যা:

The distance to be covered = Sum of their lengths = 200 + 300 = 500 m.

Relative speed = 72 -36 = 36 kmph = 36 x 5/18 = 10 mps.

Time required = d/s = 500/10 = 50 sec.