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If a + 2b = 6 and ab = 4, then what is $$\frac{2}{a} + \frac{1}{b} = ?$$
Answer & Solution
Correct Answer:
Option
C
$$\eqalign{
& \frac{2}{a} + \frac{1}{b} \cr
& = \frac{{2b + a}}{{ab}} \cr
& = \frac{6}{4} \cr
& = \frac{3}{2} \cr} $$
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