The fruit shop brought in 450 kilograms of apples, sold 240 kilograms, and left 6 boxes. How many kilograms does each box weigh on average?
水果店运进450千克苹果，已经卖了240千克，还剩下6箱，平均每箱重多少千克？
<gadget id="calculator">450 - 240</gadget>
<output>210</output>

<gadget id="calculator">210 / 6</gadget>
<output>35</output>

<result>35</result>