The average of the three numbers A, B, and C is 120, the number of A is 60, and the numbers B and C are the same, what is the number of C?
甲、乙、丙三个数的平均数是120，甲数是60，且乙、丙两数相同，则丙数是多少？
<gadget id="calculator">120 * 3</gadget>
<output>360</output>

<gadget id="calculator">360 - 60</gadget>
<output>300</output>

<gadget id="calculator">300 / 2</gadget>
<output>150</output>

<result>150</result>