Group A and Group B have the same number of people. If 3 people are transferred from Group B to Group A, then Group B is less than Group A (1/3). How many people are there in these two groups?
甲乙组人数相等，如果从乙组调出3人到甲组，这时乙组比甲组少(1/3)．这两组共有多少人？
<gadget id="calculator">3 + 3</gadget>
<output>6</output>

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

<gadget id="calculator">6 / (1/3)</gadget>
<output>18</output>

<gadget id="calculator">18 - 3 - 3</gadget>
<output>12</output>

<gadget id="calculator">12 + 18</gadget>
<output>30</output>

<result>30</result>