Use the unit method. Let the total money be 10 units.<br><br>
&bull; Transport: \( \frac{1}{10} \) of total = 1 unit<br>
&bull; Remaining: 10 − 1 = 9 units<br>
&bull; Food: \( \frac{1}{3} \) of remaining = \( \frac{1}{3} \times 9 \) = 3 units<br>
&bull; Money left: 9 − 3 = 6 units<br>
&bull; Fraction left: \( \frac{6}{10} = \frac{3}{5} \)<br><br>
Final Answer: B: \( \frac{3}{5} \)