The sixth grade students should be divided into 15 groups when they go on an autumn outing. One part consists of 8 people, and the other part consists of 5 people. The total number of 8 people in the group is 3 more than the total number of 5 people in the group. How many students in the grade participated in the autumn tour?
六年级学生去秋游，要分成15个组，一部分由8人组成一个小组，另一部分由5个人组成一个小组，8人组成小组的总人数比5人组成小组的总人数多3人，那么六年级共有多少名同学参加秋游．
<gadget id="calculator">78 / 13</gadget>
<output>6</output>

<gadget id="calculator">6 * 8</gadget>
<output>48</output>

<gadget id="calculator">15 - 6</gadget>
<output>9</output>

<gadget id="calculator">5 * 9</gadget>
<output>45</output>

<gadget id="calculator">48 + 45</gadget>
<output>93</output>

<result>93</result>