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If $$\frac{1}{3} + \frac{1}{2} + \frac{1}{x}{\text{ = 4,}}$$ then x = ?
Answer & Solution
Correct Answer:
Option
B
$$\eqalign{
& \frac{1}{x} = 4 - \left( {\frac{1}{3} + \frac{1}{2}} \right) \cr
& \,\,\,\,\,\, = 4 - {\frac{{2 + 3}}{6}} \cr
& \,\,\,\,\,\, = 4 - \frac{5}{6} \cr
& \,\,\,\,\,\, = \frac{{24 - 5}}{6} \cr
& \,\,\,\,\,\, = \frac{{19}}{6} \cr
& \Rightarrow x = \frac{6}{{19}} \cr} $$
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