A can of coffee weighing 400 grams requires 20 grams of coffee and 7.2 grams of cube sugar to brew a cup. How many grams of cube sugar is needed to finish this can of coffee?
一罐重400克的咖啡，每冲一杯需要20克咖啡和7.2克方糖，冲完这罐咖啡需要多少克方糖？
<gadget id="calculator">400 / 20</gadget>
<output>20</output>

<gadget id="calculator">20 * 7.2</gadget>
<output>144</output>

<result>144</result>