A and B are two stations 370 km apart.
A and B are two stations 370 km apart. A train starts from station A at 9:00 A.M. and travels towards station B at a speed of 20km/hr. Another train starts from station B at 10:00 A.M. and travels towards station A at a speed of 50 km per/hr. At what time do they meet?
दो स्टेशन A और B एक – दूसरे से 370 km की दूरी पर हैं। एक ट्रेन स्टेशन A से 9:00 A.M. पर चलती है तथा स्टेशन B की ओर 20 km/hr की चाल से यात्रा करती है। दूसरी ट्रेन स्टेशन B से 10: 00 A.M पर चलती है और स्टेशन A की और 50 km/hr की चाल से य़ात्रा करती हैं। वे किस समय पर एक – दूसरे से मिलती हैं?
Detailed Solution & Logic
3 : 00 P.M.
Distance between A and B = 370 km
Train from A starts at 9:00 AM with speed 20 km/h
Distance covered by 10:00 AM = $ 20 \times 1 = 20 $ km
Remaining distance = 370 - 20 = 350 km
Train from B starts at 10:00 AM with speed 50 km/h
Relative speed = 20 + 50 = 70 km/h
Time after 10 : 00 AM to meet = $ \dfrac{350}{70} = 5$ h
Meeting time = 10:00 AM + 5 h = 3:00 PM
Answer: 3 : 00 PM
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