Xiaojun’s family raises 4 roosters, 15 more hens than roosters, and twice as many chicks as the total number of roosters and hens, how many chicks?
小军家养公鸡4只，养的母鸡比公鸡多15只，养的小鸡的只数是公鸡和母鸡的总数的2倍，养小鸡多少只？
<gadget id="calculator">4 + 15 + 4</gadget>
<output>23</output>

<gadget id="calculator">23 * 2</gadget>
<output>46</output>

<result>46</result>