There are 42 students in Class 1 of the third year, and the total number of students in the third grade is 7 times the number of students in Class 1 of the third year. How many students are there in the third grade?
三年1班的学生有42个，三年级的总人数是三1班人数的7倍，三年级一共有多少人？
<gadget id="calculator">42 * 7</gadget>
<output>294</output>

<result>294</result>