Li Ying paid 29.5 yuan for 10 mechanical pencils and 5 diaries, 1.3 yuan for each mechanical pencil, how much is each diary?
李英买了10支自动铅笔和5本日记本共付出29.5元，每枝自动铅笔1.3元，每本日记本多少元？
<gadget id="calculator">1.3 * 10</gadget>
<output>13</output>

<gadget id="calculator">29.5 - 13</gadget>
<output>16.5</output>

<gadget id="calculator">16.5 / 5</gadget>
<output>3.3</output>

<result>3.3</result>