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1981 AMC 12 Question 3

AMC12 · 1981 AMC 12

Question 3

For $x\ne0,$ $\frac1x+\frac1{2x}+\frac1{3x}$ equals
  1. $\frac1{2x}$
  2. $\frac1{6x}$
  3. $\frac5{6x}$
  4. $\frac{11}{6x}$
  5. $\frac1{6x^3}$