Team run

The first team member in a three-person relay race must run 2 1/4 laps, the second team member must run 1 1/2 laps, and the third team member must run 3 1/4 laps. How many laps in all must each team run?

Correct answer:

r =  7

Step-by-step explanation:

a=241=2+41=42 4+1=48+1=49=241=2.25 b=121=1+21=21 2+1=22+1=23=121=1.5 c=341=3+41=43 4+1=412+1=413=341=3.25  r=a+b+c=49+23+413=49+46+413=49+6+13=428=7



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