Solve this:

97. Evaluate : $\frac{2\frac{5}{4}-4\frac{7}{6}+3\frac{1}{3}}{0.087+0.3717÷0.9}$
(A) 2.833            (B) 0.28
(C) 0.000028      (D) 0.00028

Dear Student,

$$\begin{gathered} Evaluate: \frac{{\displaystyle \frac{13}{4}-\frac{31}{6}+\frac{10}{3}}}{0.087+0.3717÷0.9} \\ = \frac{{\displaystyle \frac{39-62+40}{12}}}{0.087+0.3717÷0.9} \\ = \frac{{\displaystyle \frac{17}{12}}}{0.087+0.3717÷0.9} \\ =\frac{{\displaystyle \frac{17}{12}}}{0.087+{\displaystyle \frac{0.3717}{0.9}}} \\ = \frac{17}{12}\times \frac{0.9}{\left(0.0783+0.3717\right)} \\ = \frac{{\displaystyle 17}}{{\displaystyle 12}}\times \frac{{\displaystyle 0.9}}{{\displaystyle 0.45}} \\ =2.833 \\ Hence option \left(A\right) is correct \end{gathered}$$

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