The supermarket bought 100 sausages at a price of 1 yuan each and sold them at a price of 2 yuan each. When part of the sausages are sold, the remaining sausages are sold at a 10% discount. When the sausages are sold out, the supermarket makes a total profit of 96 yuan. How many sausages are there for 10% off?
超市以每根1元的价格进了100根香肠，以每根2元的价格卖出．当卖了一部分香肠后，剩余的香肠打九折出售．香肠卖完时超市共盈利96元．其中打九折卖出的香肠有多少根？
<gadget id="calculator">100 * 2</gadget>
<output>200</output>

<gadget id="calculator">200 - 100 - 96</gadget>
<output>4</output>

<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">2 * (9/10)</gadget>
<output>9/5 = around 1.8</output>

<gadget id="calculator">1 - 1 - (9/5)</gadget>
<output>-9/5 = around -1.8</output>

<gadget id="calculator">2 + (-9/5)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">4 / (1/5)</gadget>
<output>20</output>

<result>20</result>