There are 350 pots of roses, orchids, and chrysanthemums in the school flower beds. The ratio of roses to orchids is 5:6. The number of pots of chrysanthemums is 3/10 of roses. How many pots are there more of orchids than roses?
学校花坛里有月季花、兰花、菊花公350盆，月季花和兰花的比是5：6，菊花的盆数是月季花的(3/10)，兰花比月季花多多少盆？
<gadget id="calculator">12 - 10</gadget>
<output>2</output>

<gadget id="calculator">3 + 10 + 12</gadget>
<output>25</output>

<gadget id="calculator">2 / 25</gadget>
<output>2/25 = around 0.08</output>

<gadget id="calculator">350 * (2/25)</gadget>
<output>28</output>

<result>28</result>