If a cube dice is rolled 120 times, how many times will 3 appear?
一个正方体的骰子，投掷120次，出现3的次数约是多少次．
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">120 * (1/6)</gadget>
<output>20</output>

<result>20</result>