84 people lined up in 4 square teams to do exercises. Each phalanx stands in 3 columns. How many people per row on average?
84人排成4个方队做操．每个方队站3列．平均每列站多少人？
<gadget id="calculator">84 / 4 / 3</gadget>
<output>7</output>

<result>7</result>