The park brought 240 flowers and prepared to arrange 2 rows with 6 vases in each row. How many flowers per vase on average?
公园运来240朵花，准备摆2行，每行放6个花瓶．平均每个花瓶插多少朵花？
<gadget id="calculator">2 * 6</gadget>
<output>12</output>

<gadget id="calculator">240 / 12</gadget>
<output>20</output>

<result>20</result>