There are four pig farms A, B, C, and D. On average, each pig farm raises more than 30 pigs. The number of pigs raised by A is 2/3 of that of B, and the number of pigs raised by B is 1 (1/4) of that of C. ), Ding raises 3 more than Jia. How many pigs are raised in Pig Farm C?
甲、乙、丙、丁四个养猪场，平均每个猪场养猪30多头，甲养的头数是乙的(2/3)，乙养的头数是丙的1(1/4)，丁比甲多养3头．丙猪场养猪多少头．
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">45 * (4/5)</gadget>
<output>36</output>

<result>36</result>