Mathematics, 02.02.2020 15:56 codyshs160

Agirl wants to count the steps of a moving escalator which is going up if she is going up she counts 60 steps if she is going down taking the same time per 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 she counts...

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