There are two groups of numbers, the average of the first group is 12.8, the average of the second group is 10.2, and the average of these two groups is 12.02, then the number of the first group and the number of the second group What is the ratio of the numbers?
有两组数，第一组数的平均数是12.8，第二组的平均数是10.2，而这两组数的平均数是12.02，那么第一组数的个数与第二组数的个数的比值是多少？
<gadget id="calculator">12.02 - 10.2</gadget>
<output>1.82</output>

<gadget id="calculator">12.8 - 10.2</gadget>
<output>2.6</output>

<gadget id="calculator">1.82 / 2.6</gadget>
<output>0.7</output>

<gadget id="calculator">1 - 0.7</gadget>
<output>0.3</output>

<gadget id="calculator">1.82 / 2.6 / 0.3</gadget>
<output>2.333333</output>

<result>2.333333</result>