Aunt Zhang purchased goods and bought 30 kilograms of apples and 28 kilograms of bananas. The total cost was 146 yuan, 2 yuan per kilogram of bananas, how much is each kilogram of apples?
张阿姨进货，买了30千克苹果和28千克香蕉，一共用去146元，每千克香蕉2元，每千克苹果多少钱？
<gadget id="calculator">2 * 28</gadget>
<output>56</output>

<gadget id="calculator">146 - 56</gadget>
<output>90</output>

<gadget id="calculator">90 / 30</gadget>
<output>3</output>

<result>3</result>