The students went to visit the museum. There were 98 students in the first grade, 17 more students in the second grade than the first grade, and three times as many people in the third grade as the second grade. How many people went to the third grade?
同学们去参观博物馆，一年级去了98人，二年级比一年级多去17人，三年级去的人数是二年级的3倍．三年级去了多少人？
<gadget id="calculator">98 + 17</gadget>
<output>115</output>

<gadget id="calculator">115 * 3</gadget>
<output>345</output>

<result>345</result>