The two wires use the same amount, one is 80 meters long, and the other is 40 meters long. At this time, the length of the remaining part of the two wires is 3.5 times that of the other. How many meters are used for each of the two wires?
两根电线用去同样多，一根长80米，一根长40米，这时两根电线剩下的部分一根的长度是另一根的3.5倍，两根电线各用去多少米？
<gadget id="calculator">40 * 3.5</gadget>
<output>140</output>

<gadget id="calculator">140 - 80</gadget>
<output>60</output>

<gadget id="calculator">3.5 - 1</gadget>
<output>2.5</output>

<gadget id="calculator">60 / 2.5</gadget>
<output>24</output>

<result>24</result>