Algebra of Train
Lacking proper equipment, two friends devise a way to measure how long the train is based on their walking steps -
Consider Friends X & Y. They have the same pace length and Speed. They line up each other back to back at the mid-length of the train. As the train starts they start walking till the train end pass them. If person X takes 30 steps and person Y takes 45 steps before stopping, then what is the length of the train in terms of steps.
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