2007 AMC 12A Problems/Problem 3

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Problem

The larger of two consecutive odd integers is three times the smaller. What is their sum?

Solution

Solution a.

  • n+1=3n-3
  • 4=2n
  • n=2
  • (2-1)+(2+1)=4


Solution b.

  • By inspection, 1 and 3 work. 1+3=4.

See also