In the orchard, a batch of apples should be packed in cardboard boxes. Each box holds 12 kilograms, which is exactly 20 boxes. Now there are only 15 cartons. If you want to pack this batch of apples in these boxes on average, how many kilograms should each box hold?
果园里要用纸箱包装一批苹果，每箱装12千克，刚好装20箱，现在只有15个纸箱，要想把这批苹果平均装在这些箱子里，每箱应装多少千克？
<gadget id="calculator">20 / 15</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">12 * (4/3)</gadget>
<output>16</output>

<result>16</result>