The pears in the fruit shop are 1.5 yuan per kilogram, which is 2.3 yuan less than the unit price of apples. How much is the apple per kilogram?
水果店的梨每千克1.5元，比苹果的单价少2.3元，苹果每千克多少元？
<gadget id="calculator">1.5 + 2.3</gadget>
<output>3.8</output>

<result>3.8</result>