A bouquet of flowers is 35 yuan, buy 5 and get 2 free. Aunt Wang buys 5 bundles at a time, how much is each bundle cheaper?
一束鲜花35元，买5束送两束．王阿姨一次买5束，每束便宜多少元？
<gadget id="calculator">5 + 2</gadget>
<output>7</output>

<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">35 * (2/7)</gadget>
<output>10</output>

<result>10</result>