Students do radio exercises, 16 people stand in each row, exactly 5 rows. If there are 4 rows, how many people stand in each row?
同学们做广播操，每行站16人，正好站5行．如果站4行，每行站多少人？
<gadget id="calculator">5 / 4</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">16 * (5/4)</gadget>
<output>20</output>

<result>20</result>