The fourth grade students went to visit the museum in two groups. Each batch rented 3 cars, and each car took 40 people. How many people are there in the fourth grade?
四年级同学分两批去博物馆参观．每批租了3辆汽车，每辆汽车坐40人．四年级一共有多少人？
<gadget id="calculator">40 * 3 * 2</gadget>
<output>240</output>

<result>240</result>