Uncle Zhang bought 5 pigeons for a total of 75 yuan. If he wanted to buy 9 more pigeons like this, how much money would he need to prepare?
张大伯买5只鸽子一共75元，如果再想9只这样的鸽子，需要准备多少钱？
<gadget id="calculator">75 / 5</gadget>
<output>15</output>

<gadget id="calculator">15 * 9</gadget>
<output>135</output>

<result>135</result>