A certain elementary school is rehearsing the chorus for the New Year's Gala. There are 28 boys, 2 times less than the girls. How many girls are there rehearsing the chorus? (column equation solution)
某小学在为新年联欢会排练合唱，其中男生有28人，比女生的1.5倍少2人，排练合唱的女生有多少人？(列方程解答)
<gadget id="calculator">28 + 2</gadget>
<output>30</output>

<gadget id="calculator">30 / 1.5</gadget>
<output>20</output>

<result>20</result>