Quant Interview Question
Quantitative Researcher Interview
Person A walks up an escalator at 2 steps/second. Person B walks up an escalator at 3 steps/second. Person B gets on the escalator 5 seconds after A and arrives at the top X seconds after A. (I forgot the exact value of X) If the escalator is moving at 1 step/second, how many steps are visible on the escalator at a single point in time?
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