The fruit shop shipped 15 baskets of oranges and 12 baskets of apples, weighing 600 kg in total. Each basket of oranges weighs 20 kg, how much does each basket of apples weigh?
水果店运来15筐桔子和12筐苹果，一共重600千克．每筐桔子重20千克，每筐苹果重多少千克？
<gadget id="calculator">15 * 20</gadget>
<output>300</output>

<gadget id="calculator">600 - 300</gadget>
<output>300</output>

<gadget id="calculator">300 / 12</gadget>
<output>25</output>

<result>25</result>