A school girl spends $\frac{1}{4}$ of her pocket money on books and $\frac{1}{3}$ on dress. What fraction remains?

$\frac{5}{6}$

$\frac{7}{12}$

$\frac{5}{12}$

$\frac{1}{6}$

Correct answer is C

Let the girls pocket money be rep. by x. The amount spent on books = $\frac{1}{4}of\hspace{1mm}x = \frac{x}{4}$
The amount spent on dress $=\frac{1}{3} of \hspace{1mm}x=\frac{x}{3}$
∴The fraction that remains = $\frac{x}{1}-\left(\frac{x}{4}+\frac{x}{3}\right)\\ \frac{3x+4x}{12}; = \frac{12x-7x}{12} = \frac{5x}{12} = \frac{5}{12}$

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