100 grams of milk contains 3.2 grams of fat, 3 grams of protein, and 3.4 grams of carbohydrates. Xiaoya drank 500 grams of milk in the morning, how many grams of protein did she get from it?
100克牛奶中含脂肪3.2克，蛋白质3克，碳水化合物3.4克．小雅早晨喝了500克牛奶，她从中摄取了蛋白质多少克．
<gadget id="calculator">500 / 100</gadget>
<output>5</output>

<gadget id="calculator">5 * 3</gadget>
<output>15</output>

<result>15</result>