There are 45 people in our class. If each person recycles 1.5 kg of waste paper, 1 kg of waste paper can be recycled to produce 0.8 kg of recycled paper. How many kg of recycled paper can be produced from the recycled waste paper in our class?
我们班有45人，如果每人回收1.5千克废纸，回收1千克废纸，可生产0.8千克再生纸，我们班回收的废纸可生产多少千克再生纸？
<gadget id="calculator">1.5 * 0.8 * 45</gadget>
<output>54</output>

<result>54</result>