Question
Download Solution PDFThe ratio of the speed of train A and train B is 1 : 2 respectively. Train B crosses a pole in 10 sec. Average of the length of train A and train B is 1500 meter. Ratio of the length of train A and train B is 2 : 1. Find the time taken by train A to cross a pole.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCalculation
Let length of train A and train B is 2x and x respectively.
So, [2x +x]/2 = 1500
Or, 3x = 3000
Or, x = 1000
So, Length of train A is 2000 and length of train B 1000.
Speed of train B is 1000/10 = 100 m/sec
Speed of train A is 100/2 = 50 m/sec
So, required time = [2000/50] = 40 sec
Last updated on Jul 3, 2025
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