Buying 3 kilograms of oranges and 4 kilograms of apples costs 28.6 yuan. It is known that the price of oranges per kilogram is 3.2 yuan. How much is the price of apples per kilogram?
买3千克桔子和4千克苹果共用28.6元，已知每千克桔子的售价是3.2元，每千克苹果的售价是多少元？
<gadget id="calculator">3 * 3.2</gadget>
<output>9.6</output>

<gadget id="calculator">28.6 - 9.6</gadget>
<output>19</output>

<gadget id="calculator">19 / 4</gadget>
<output>19/4 = around 4.75</output>

<result>19/4 = around 4.75</result>