Aptitude - Problems on Trains - Discussion
Discussion Forum : Problems on Trains - General Questions (Q.No. 31)
31.
Two, trains, one from Howrah to Patna and the other from Patna to Howrah, start simultaneously. After they meet, the trains reach their destinations after 9 hours and 16 hours respectively. The ratio of their speeds is:
Answer: Option
Explanation:
Let us name the trains as A and B. Then,
(A's speed) : (B's speed) = b : a = 16 : 9 = 4 : 3.
Discussion:
108 comments Page 11 of 11.
Swati said:
6 years ago
I didn't understand, please anyone explain me to get it.
Lavanya said:
6 years ago
Thanks for explaining @Pandu Ranga.
Lavanya said:
6 years ago
Thank you so much @Ishita Narula.
Neeraj said:
5 years ago
The above explanations are not correct. For example,
2 trains at station A&B. It starts at the same time at 8 AM in the morning. Train A speed is 100km/hr&train B speed is 150km/hr. Then they will meet after 4 hrs. If the total distance is 1000km.
After meeting, B takes 9hrs (TOTAL 13hrs) to complete its journey and A takes 16hrs (TOTAL 20HRS) to complete its journey. So the speeds of both trains decreasing to 50 km/hr &76.92km/hr. So equations 2&3 are not correct.
2 trains at station A&B. It starts at the same time at 8 AM in the morning. Train A speed is 100km/hr&train B speed is 150km/hr. Then they will meet after 4 hrs. If the total distance is 1000km.
After meeting, B takes 9hrs (TOTAL 13hrs) to complete its journey and A takes 16hrs (TOTAL 20HRS) to complete its journey. So the speeds of both trains decreasing to 50 km/hr &76.92km/hr. So equations 2&3 are not correct.
Sagar arote said:
5 years ago
Thanks for very simple answer @Ajinkya.
Asmi said:
5 years ago
Very helpful, Thanks for all your explanations.
Naveen said:
5 years ago
Very helpful. Thanks all.
Aishwarya Kolekar said:
2 weeks ago
Very good to practise. Thanks all.
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