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A subway car passes 3 stations every 10 ...

A subway car passes 3 stations every 10 minutes. At this rate, how many stations will be it pass in 1 hour?

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The correct Answer is:
A
Difficult: Easy
Category: Problem Solving and Data Analysis/ Rates, Ratios, Proportions, and Percentages
Strategic Advice: Think logically to answer a question like this -three are no complicated conversions to make.
Getting to the Answer: Because there are 60 minutes in an hour, the subway will pass `(60)/(10)=6` times as many stations in one hour as it passes in 10 minutes. In 10 minutes, it passes 3 stations, so in 60 minutes it must pass `6times2=18` stations.
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