Mathematics, 13.01.2020 12:31 Maddy4965

Agirl wants to count the steps of a moving escalator which is going up if she is going up on it she count 60 steps and she is walking down taking the same time for step then she counts 90 steps how many steps would she have to take in either direction if the escalator were standing still

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Agirl wants to count the steps of a moving escalator which is going up if she is going up on it she...