Question
1.
2.
3.
4.
Answer (Detailed Solution Below)
Option 2 : 72
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Detailed Solution
सही उत्तर 72 है।
Key Points
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prepsnap.in • Part -AQuestion:
A 250 m long train crosses a 150 m long platform in 20 seconds. Find its speed in km/h.
1.
60
2.
72
3.
75
4.
80
Correct Answer: 72
Speed = (250+150)/20 = 20 m/s = 20 × 18/5 = 72 km/h. / चाल = 400/20 = 20 मी/से = 72 किमी/घंटा।
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