Stores mix 30kg of halva and 20kg of fruit sugar into assorted candies. 8 yuan per kilogram of crisp candy, 3 yuan per kilogram of fruit candy. How much should be sold per kilogram of assorted sugar?
商店用30千克酥糖和20千克水果糖混合成什锦糖．每千克酥糖8元，每千克水果糖3元．每千克什锦糖应卖多少元？
<gadget id="calculator">8 * 30</gadget>
<output>240</output>

<gadget id="calculator">3 * 20</gadget>
<output>60</output>

<gadget id="calculator">240 + 60</gadget>
<output>300</output>

<gadget id="calculator">30 + 20</gadget>
<output>50</output>

<gadget id="calculator">300 / 50</gadget>
<output>6</output>

<result>6</result>