fruit shop ships 210 kilograms of apples, which are placed in 7 cartons on average. If the apples are 4 yuan per kilogram, how much is the apple in each box?
一个水果店运来苹果210千克，平均放在7个纸箱里，如果每千克苹果4元，每箱苹果多少元？
<gadget id="calculator">210 / 7</gadget>
<output>30</output>

<gadget id="calculator">4 * 30</gadget>
<output>120</output>

<result>120</result>