There are 25 watermelons, how many days is enough for Zhu Bajie? (Zhu Bajie eats half a meal, and eats 5 meals a day.)
有25个西瓜，够猪八戒吃多少天？(猪八戒一餐吃半个，一天吃5餐．)
<gadget id="calculator">0.5 * 5</gadget>
<output>2.5</output>

<gadget id="calculator">25 / 2.5</gadget>
<output>10</output>

<result>10</result>