Last year, the fourth grade of elementary school in our city held a mathematics knowledge competition. The number of winners was 480. The ratio of the number of first, second and third prizes was 1:2:3. How many people won the second prize?
去年我市小学四年级举行了数学知识竞赛，获奖人数为480名，一、二、三等奖的人数比是1：2：3．获二等奖的有多少人．
<gadget id="calculator">1 + 2 + 3</gadget>
<output>6</output>

<gadget id="calculator">2 / 6</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">480 * (1/3)</gadget>
<output>160</output>

<result>160</result>