Buy 2 kilograms of toffee for 22 yuan, and buy 1 kilogram of fruit candy for 8 yuan. After mixing the two kinds of sugar, what is the value of each kilogram?
用22元买2千克奶糖，用8元买1千克水果糖，两种糖混合后，每千克价值多少元．
<gadget id="calculator">22 + 8</gadget>
<output>30</output>

<gadget id="calculator">2 + 1</gadget>
<output>3</output>

<gadget id="calculator">30 / 3</gadget>
<output>10</output>

<result>10</result>