A wire is cut off by 20%, and then connected to 60 meters, the result is 40% longer than the original, how many meters is the original length of this wire? (solution by equation)
一根电线，截去20%，再接上60米，结果比原来长40%，这根电线原来长多少米？(用方程解)
<gadget id="calculator">60 / 0.6</gadget>
<output>100</output>

<result>100</result>