A water pipe in the school was broken, and it leaked 0.18 tons of water per hour. It took 0.25 hours for the water pipe to be found after it was broken. How many tons of water did it leak during this period?
学校有一个水管坏了，它每小时要漏掉0.18吨水，这个水管从坏到被发现一共用了0.25小时，在这段时间内一共漏掉了多少吨水？
<gadget id="calculator">0.18 * 0.25</gadget>
<output>0.045</output>

<result>0.045</result>