40% of a bag of flour is eaten, and if you eat another 6 kilograms, you will eat half of it. How many kilograms did this bag of flour originally weigh?
一袋面粉吃了40%，如果再吃去6千克正好吃了一半．这袋面粉原来有多少千克？
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 - (2/5) - (1/2)</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">6 / (1/10)</gadget>
<output>60</output>

<result>60</result>