Sweep the floor for 3 minutes, boil water for 20 minutes, wash clothes in the washing machine for 25 minutes, mop the floor for 8 minutes, wash dishes for 6 minutes, and dry clothes for 5 minutes. How many minutes will it take to finish these things at least.
扫地3分钟，烧水20分钟，洗衣机洗衣服25分钟，拖地8分钟，洗碗6分钟，晾衣服5分钟．做完这些事最少要多少分钟．
<gadget id="calculator">20 + 25</gadget>
<output>45</output>

<result>45</result>