A football is 68 yuan, a volleyball is 102 yuan, Mr. Li bought 10 volleyballs, if you use this money to buy footballs, how many footballs can you buy at most?
一个足球68元，一个排球102元，李老师买了10个排球，如果用这些钱去买足球，最多可以买多少个足球？
<gadget id="calculator">10 / 68</gadget>
<output>5/34 = around 0.147059</output>

<gadget id="calculator">102 * (5/34)</gadget>
<output>15</output>

<result>15</result>