A fruit shop shipped 3 boxes of apples and 5 boxes of pears with a total weight of 250 kilograms. The average weight of each box of apples is 28.5 kilograms. How many kilograms does each box of pears weigh?
某水果店运来3箱苹果和5箱梨子共重250千克，平均每箱苹果重28.5千克，每箱梨子重多少千克？
<gadget id="calculator">28.5 * 3</gadget>
<output>85.5</output>

<gadget id="calculator">250 - 85.5</gadget>
<output>164.5</output>

<gadget id="calculator">164.5 / 5</gadget>
<output>32.9</output>

<result>32.9</result>