rectangular wheat field is 25 meters long and 12 meters wide. It can harvest 3 kilograms of wheat per 4 square meters. How many kilograms of wheat can be harvested in this wheat field?
一块长方形麦田、长25米，宽12米，每4平方米可收小麦3千克，这块麦田一共可收多少千克的小麦？
<gadget id="calculator">12 / 4</gadget>
<output>3</output>

<gadget id="calculator">25 * 3 * 3</gadget>
<output>225</output>

<result>225</result>