Two engineering teams, Dahua and Shenghai, built a tunnel from both ends at the same time. The Dahua engineering team repaired 110 meters a day, and the Shenghai engineering team repaired 125 meters a day. A few days later, the two teams met at a place 30 meters away from the midpoint of the tunnel. , how many meters is this tunnel long?
大华和胜海两个工程队同时从两端修一条隧道，大华工程队每天修110米，胜海工程队每天修125米，几天后两队在距离隧道中点30米的地方相遇，这条隧道长多少米？
<gadget id="calculator">110 + 125</gadget>
<output>235</output>

<gadget id="calculator">30 + 30</gadget>
<output>60</output>

<gadget id="calculator">125 - 110</gadget>
<output>15</output>

<gadget id="calculator">60 / 15</gadget>
<output>4</output>

<gadget id="calculator">235 * 4</gadget>
<output>940</output>

<result>940</result>