Xiao Ming and Xiao Hong put out the same amount of money to buy homework books together. As a result, Xiao Ming took 8 books, and Xiao Hong took 12 books. In this way, Xiao Hong gave Xiao Ming 1.1 yuan. What is the unit price of each workbook.
小明和小红拿出同样多的钱合买作业本，结果小明拿了8本，小红拿了12本，这样，小红就给小明1.1元．每本作业本的单价是多少元．
<gadget id="calculator">12 - 10</gadget>
<output>2</output>

<gadget id="calculator">1.1 / 2</gadget>
<output>0.55</output>

<result>0.55</result>