Calculating the number of steps in an escalator

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The discussion focuses on calculating the number of steps in a stationary escalator based on the movement of two individuals, A and B. A takes 50 steps while B takes 75 steps, with the time taken by A to take one step being equal to the time taken by B to take three steps. By establishing the equations x + y = 50 and 3x + y = 75, where x represents the steps taken by A and y represents the escalator's movement, the solution reveals that the escalator has 37.5 steps when stationary.

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viren_t2005
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There is a escalator and 12 persons move down it. A takes 50 steps and B takes 75 steps while the escalator is moving down.Given that the time taken by A to take 1 step is equal to time taken by B to take 3 steps. Find the no.of steps in the escalator while it is stationary
 
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I think I am correct. Let x be the number of steps covered by A in the given time and let y be the steps escalator sailed. then
x + y = 50
3x + y = 75.
Thus we will get the answer y as to be 37.5
 

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