The ratio of the three numbers A, B, and C is 2:4:5, and the average of the three numbers is 44, what is the number A?
甲、乙、丙三个数的比是2：4：5，三个数的平均数是44，则甲数是多少．
<gadget id="calculator">2 + 4 + 5</gadget>
<output>11</output>

<gadget id="calculator">2 / 11</gadget>
<output>2/11 = around 0.181818</output>

<gadget id="calculator">44 * 3 * (2/11)</gadget>
<output>24</output>

<result>24</result>