A train travelling at 60 km/hr
A train travelling at 60 km/hr crosses another train travelling in the opposite direction at 84 km/hr in 30 seconds. What is the combined length (in m) of both the trains?
60 किमी/घंटा की गति से चल रही एक ट्रेन, विपरीत दिशा में 84 किमी/घंटा की गति से चल रही दूसरी ट्रेन को 30 सेकंड में पार करती है। दोनों ट्रेनों की कुल लंबाई (मीटर में) कितनी है?
Detailed Solution & Logic
Correct Answer:
1200
Step 1: Relative speed
Since trains move in opposite directions:
Relative speed = $60 + 84 = 144$ km/hr
Convert into m/s:
$144 \times \frac{5}{18} = 40$ m/s
Step 2: Find combined length
Combined length = Speed × Time
$= 40 \times 30$
= 1200 m
Final Answer: 1200 m
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