There are two different T-shirts in the mall, one of which is 25 yuan each, and the other is 45 yuan for two pieces. Aunt Zhang has 225 yuan. How many pieces can she buy at most?
商场有两种不同的T恤，其中一种每件25元，另一种两件45元，张阿姨有225元，她最多可以买多少件？
<gadget id="calculator">225 / 45</gadget>
<output>5</output>

<gadget id="calculator">2 * 5</gadget>
<output>10</output>

<result>10</result>