road is jointly repaired by teams A, B and C. Team A repairs (1/2) of it, Team B repairs the rest (2/5), and the rest is repaired by Team C. It is known that Team A is more Team C repaired 120 meters more, so how many meters did Team C repair?
一条公路由甲、乙、丙三队合修，甲队修其中的(1/2)，乙队修剩下的(2/5)，其余的由丙队来修，已知，甲队比丙队多修了120米，那么丙队修了多少米．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(1/2) * (2/5)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/2) - (1/5)</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">(1/2) - (3/10)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">120 / (1/5)</gadget>
<output>600</output>

<gadget id="calculator">(1/2) * 600</gadget>
<output>300</output>

<gadget id="calculator">300 - 120</gadget>
<output>180</output>

<result>180</result>