There are 56 boys and 35 girls in the second grade. The number of students in the sixth grade is 4 times the number of students in the second grade. How many people are there in the sixth grade?
二年级有男生56人，女生35人．六年级的学生人数是二年级学生人数的4倍，六年级有多少人？
<gadget id="calculator">56 + 35</gadget>
<output>91</output>

<gadget id="calculator">91 * 4</gadget>
<output>364</output>

<result>364</result>