There are 200 bags of rice and flour in the warehouse. After the rice is removed (2/5) and the flour is removed (1/10), the remaining rice and flour in the warehouse are just equal. How many bags of flour are there?
仓库里的大米和面粉共有200袋．大米运走(2/5)，面粉运走(1/10)后，仓库里剩下大米和面粉正好相等．原来面粉有多少袋？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(2/5) * 200</gadget>
<output>80</output>

<gadget id="calculator">200 - 80</gadget>
<output>120</output>

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 - (2/5) - (1/10)</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 + (1/2)</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">120 / (3/2)</gadget>
<output>80</output>

<result>80</result>