30% of a box of apples was eaten, and the rest was 24 kg more than what was eaten. How many kilograms did you eat?
一箱苹果吃了30%，剩下的比吃了的多24千克．吃了多少千克？
<gadget id="calculator">30 / 100</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">1 - (3/10) - (3/10)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">24 / (2/5)</gadget>
<output>60</output>

<gadget id="calculator">60 * (3/10)</gadget>
<output>18</output>

<result>18</result>