There are 120 students in the sixth grade of a primary school participating in the mathematics competition, and the number of winners accounts for (3/10) of the total number of students participating in the mathematics competition in the sixth grade, and the number of winners (1/3) is girls. How many girls are there?
某小学六年级有120人参加数学竞赛，获奖人数占六年级参加数学竞赛总人数的(3/10)，而获奖人数的(1/3)是女生．获奖的女生有多少人？
<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

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

<gadget id="calculator">120 * (3/10) * (1/3)</gadget>
<output>12</output>

<result>12</result>