Schoolmates line up to do exercises, with 36 people in each row, and 20 rows. If there are 2 less rows, how many people should be arranged in each row?
学校同学排队做操，每列36人，要排20列．如果少排2列，每列要排多少人？
<gadget id="calculator">20 - 2</gadget>
<output>18</output>

<gadget id="calculator">20 / 18</gadget>
<output>10/9 = around 1.111111</output>

<gadget id="calculator">36 * (10/9)</gadget>
<output>40</output>

<result>40</result>