The school organizes students to visit the museum. The third grade went to 62 people, and the number of fourth graders was twice that of the third graders. How many people went to the two grades?
学校组织同学去博物馆参观．三年级去了62人，四年级去的人数是三年级的2倍．两个年级一共去了多少人？
<gadget id="calculator">62 * 2</gadget>
<output>124</output>

<gadget id="calculator">124 + 62</gadget>
<output>186</output>

<result>186</result>