The fruit shop shipped 12 boxes of apples and 15 boxes of pears, weighing 375 kilograms in total. If the average weight of each box of pears is 15 kilograms, how much does each box of apples weigh on average? (Column equation solution questions)
水果店运来12箱苹果和15箱梨，共重375千克，如果平均每箱梨重15千克，那么平均每箱苹果重多少千克？(列方程解应题)
<gadget id="calculator">15 * 15</gadget>
<output>225</output>

<gadget id="calculator">375 - 225</gadget>
<output>150</output>

<gadget id="calculator">150 / 12</gadget>
<output>25/2 = around 12.5</output>

<result>25/2 = around 12.5</result>