Question on: WAEC Mathematics - 2004
A school girl spends (\frac{1}{4}) of her pocket money on books and (\frac{1}{3}) on dress. What fraction remains?
A
\(\frac{5}{6}\)
B
\(\frac{7}{12}\)
C
\(\frac{5}{12}\)
D
\(\frac{1}{6}\)
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Correct Option: 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)<br />
\frac{3x+4x}{12}; = \frac{12x-7x}{12} = \frac{5x}{12} = \frac{5}{12})
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