Mom bought 2 kilograms of apples and 3 kilograms of pears, and shared them for 30.5 yuan. It is known that the pear is 5.2 yuan per kilogram, how much is the apple per kilogram?
妈妈买了2千克苹果和3千克梨，共用去30.5元．已知梨每千克5.2元，苹果每千克多少元？
<gadget id="calculator">5.2 * 3</gadget>
<output>15.6</output>

<gadget id="calculator">30.5 - 15.6</gadget>
<output>14.9</output>

<gadget id="calculator">14.9 / 2</gadget>
<output>7.45</output>

<result>7.45</result>