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Two trains 100 m and 150 m long run in opposite directions at 36 and 54 km/h. Time to cross each other:
Answer & Solution
Correct answer: D.
1. Total length = 100 + 150 = 250 m.
2. Relative speed (opposite directions) = 36 + 54 = 90 km/h = 90·5/18 = 25 m/s.
3. Time = 250 / 25 = 10 s.
_Source: TSICET 2024 PYQ Q.86 (Shift 1, Speed)_