Some mutated chickens and rabbits were kept in the cage. Each mutated chicken has 2 heads and 5 legs. There are a total of 132 rabbit legs, so how many chickens and rabbits are there?
笼子里关了一些产生了变异的鸡和兔，每只变异鸡有2个头，5条腿，每只变异兔有3个头，2条腿，现在已知鸡头比兔头少8个，鸡腿和兔腿一共132条，那么鸡兔一共有多少只．
<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">5 * 4</gadget>
<output>20</output>

<gadget id="calculator">132 + 20</gadget>
<output>152</output>

<gadget id="calculator">5 / 2</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(5/2) + (2/3)</gadget>
<output>19/6 = around 3.166667</output>

<gadget id="calculator">152 / (19/6)</gadget>
<output>48</output>

<gadget id="calculator">48 / 3</gadget>
<output>16</output>

<gadget id="calculator">20 + 16</gadget>
<output>36</output>

<result>36</result>