The students participated in the summer camp "Love Science, Enjoy the Future" by boat. There are 48 rooms on the boat, and each room has 24 beds on average (each bed sleeps one person). After the students live in, all the rooms will have 2 beds vacant. , how many people participated in the summer camp activities?
同学们乘船参加"爱科学，畅游未来"夏令营活动，船上有48个房间，平均每间房有24个床位(每个床位睡一人)，同学们住下后所有房间一共空出2个床位，一共有多少人参加夏令营活动？
<gadget id="calculator">24 * 48</gadget>
<output>1_152</output>

<gadget id="calculator">1_152 - 2</gadget>
<output>1_150</output>

<result>1_150</result>