The tea of type A is 40 yuan per kilogram, and the tea of type B is 24 yuan per kilogram. After mixing according to the ratio of 3:2, the total is 80 kilograms. What is the minimum selling price of the mixed tea leaves per kilogram?
甲种茶叶每千克40元，乙种茶叶每千克24元，按3：2的比例混合后共80千克，求混合后的茶叶每千克至少要卖多少元？
<gadget id="calculator">3 + 2</gadget>
<output>5</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">80 * (3/5)</gadget>
<output>48</output>

<gadget id="calculator">48 * 40</gadget>
<output>1_920</output>

<gadget id="calculator">32 * 24</gadget>
<output>768</output>

<gadget id="calculator">1_920 + 768</gadget>
<output>2_688</output>

<gadget id="calculator">2_688 / 80</gadget>
<output>168/5 = around 33.6</output>

<result>168/5 = around 33.6</result>