A faucet in the school is broken, and 50.4 kilograms of water is wasted for nothing in a week. How many kilograms of water is wasted per day on average?
学校里有一个水龙头坏了，一周白白浪费掉50.4千克水，平均每天浪费多少千克水？
<gadget id="calculator">50.4 / 7</gadget>
<output>7.2</output>

<result>7.2</result>