How many minutes?
Two cyclists are racing around a circular track. Pierre can ride once around the track in 6 minutes. Louis takes 4 minutes.
How many minutes will it take for Louis to lap Pierre?
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The engineering department was arranging for a rather expensive catered lunch to bid farewell to their retiring colleague. They calculated that it would cost each person $30. One good mathematician remarked, "It's lucky that there aren't five fewer of us to split the...