The students participated in the painting competition. The number of participants in the sixth grade was 20 less than that in the fifth grade. As a result, 96% of the students in the sixth grade won the prizes, and 80% of the students in the fifth grade won the prizes. We also know that the number of people who won the prizes in the fifth grade is the same as that in the sixth grade. Many, how many people in the fifth grade participate in the competition?
同学们参加绘画比赛，六年级比五年级参加人数少20人，结果六年级有96%的人获奖，五年级有80%的人获奖，又知五年级获奖的人数和六年级获奖的人数同样多，五年级有多少人参加比赛？
<gadget id="calculator">0.96 - 0.8</gadget>
<output>0.16</output>

<gadget id="calculator">16 / 0.16</gadget>
<output>100</output>

<gadget id="calculator">100 + 20</gadget>
<output>120</output>

<result>120</result>