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  • 2009 December(68A) Math Question 15

    Ratios, Proportions, Percentages, Fractions

    - Percents & Fractions

    Choice C
    $$\frac{1}{a}=2$$ $$\frac{1}{b}=3$$ $$\frac{1}{2}(\frac{1}{a}+\frac{1}{b})$$ $$=\frac{1}{2}(2+3)$$ $$=\frac{5}{2}$$

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