Trust-Mart bought 850 boxes of beverages, shipped 3 trucks, and left 100 boxes. How many cartons of beverages are transported on average?
好又多超市购进850箱饮料，运了3车，还剩100箱．平均每车运饮料多少箱？
<gadget id="calculator">850 - 100</gadget>
<output>750</output>

<gadget id="calculator">750 / 3</gadget>
<output>250</output>

<result>250</result>