Xiaoqiao took 50 yuan to buy bread, but she bought red bean paste buns at 5.5 yuan each, and got back 11.5 yuan. How many bean paste buns did Xiao Qiao buy?
小巧带50元钱去买面包，她买的是每只5.5元的豆沙包，找回11.5元．小巧共买了几只豆沙包？
<gadget id="calculator">50 - 11.5</gadget>
<output>38.5</output>

<gadget id="calculator">38.5 / 5.5</gadget>
<output>7</output>

<result>7</result>