There is a wire, the electrician used up the full length (1/3), and now there is 10 meters more than the used one. How many meters is this wire originally?
有一根电线，电工用去全长的(1/3)，这时剩下的比用去的多10米．这根电线原来有多少米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3) - (1/3)</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">10 / (1/3)</gadget>
<output>30</output>

<result>30</result>