Each small volleyball is 12.5 yuan, and each small football is 14.8 yuan. Teacher Li bought 3 small footballs and several small volleyballs for 106.9 yuan. How many small volleyballs should I buy?
每只小排球12.5元，每只小足球14.8元．李老师买了3吸小足球和若干只小排球共用去106.9元，买小排球多少只？
<gadget id="calculator">14.8 * 3</gadget>
<output>44.4</output>

<gadget id="calculator">106.9 - 44.4</gadget>
<output>62.5</output>

<gadget id="calculator">62.5 / 12.5</gadget>
<output>5</output>

<result>5</result>