The net content of a box of toothpaste is 180 grams, and each person uses about 0.6 grams each time they brush their teeth. There are three people in Congcong’s family, and each person brushes their teeth once in the morning and evening. How many days can this box of toothpaste be used for?
一盒牙膏的净含量180克，每人每次刷牙大约使用0.6克，聪聪家有三口人，每人早晚各刷一次牙，这盒牙膏大约可用多少天？
<gadget id="calculator">3 * 2 * 0.6</gadget>
<output>3.6</output>

<gadget id="calculator">180 / 3.6</gadget>
<output>50</output>

<result>50</result>