The third-grade broadcast gymnastics competition adopts the form of square formations. Each square has 5 rows and 8 people in each row. How many people are there in 3 such square formations?
三年级广播体操比赛采用了方阵的形式，每个方阵有5行，每行8人，3个这样的方阵有多少人．
<gadget id="calculator">5 * 8 * 3</gadget>
<output>120</output>

<result>120</result>