A box of apples weighs 12.3 kg, and a box of pears weighs 2.5 kg more than a box of apples. How many kilograms does a box of apples and a box of pears weigh together?
一箱苹果重12.3千克，一箱梨比一箱苹果重2.5千克．一箱苹果和一箱梨共重多少千克？
<gadget id="calculator">12.3 + 2.5 + 12.3</gadget>
<output>27.1</output>

<result>27.1</result>