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| Math Central | Quandaries & Queries |
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Question from Khansa: robbie runs 3 laps for unknown number of days. fran runs 3 times as many laps each day for unknown number of day. what is the formula for their combined total number of laps |
Hi,
Suppose the number of days is $N.$ Robbie runs 3 laps each day so in total he runs $3N$ laps. Fran runs three times as many laps as Robbie. How many laps does Fran run in $N$ days? What is the total number of laps they run?
Penny
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