The livestock farm raises 120 goats, the number of milk sheep is three times that of goats, and the number of sheep raised is 75 fewer than that of milk sheep. How many sheep do you have?
畜牧场养山羊120只，奶羊的只数是山羊的3倍，养的绵羊比奶羊少75只．养绵羊多少只？
<gadget id="calculator">120 * 3</gadget>
<output>360</output>

<gadget id="calculator">360 - 75</gadget>
<output>285</output>

<result>285</result>