4 boxes of bees can produce 220 kg of honey a year. Kobayashi's family has raised 15 boxes of such bees, how many kilograms of honey can be produced in a year?
4箱蜜蜂一年可以酿220千克蜂蜜．小林家养了这样的蜜蜂15箱，一年可以酿多少千克蜂蜜？
<gadget id="calculator">220 / 4</gadget>
<output>55</output>

<gadget id="calculator">55 * 15</gadget>
<output>825</output>

<result>825</result>