Question
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Answer (Detailed Solution Below)
Option 1 : 16 seconds
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Detailed Solution
सही उत्तर 16 seconds है।
Key Points
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prepsnap.in • Part -AQuestion:
Two trains 180 m and 220 m long run towards each other at 54 km/h and 36 km/h respectively. How long do they take to cross each other completely?
1.
16 seconds
2.
20 seconds
3.
12 seconds
4.
18 seconds
Correct Answer: 16 seconds
Relative speed = 54 + 36 = 90 km/h = 25 m/s. Time = (180 + 220)/25 = 400/25 = 16 seconds. / सापेक्ष चाल = 54 + 36 = 90 किमी/घं = 25 मी/से। समय = (180 + 220)/25 = 400/25 = 16 सेकंड।
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