A bundle of lead wires weighs 520 grams, and 20 meters are cut off. This bundle of lead wires is 130 grams less. How many meters are left in this bundle of lead wires?
一捆铅丝重520克，剪下20米，这捆铅丝少了130克，这捆铅丝还剩多少米？
<gadget id="calculator">20 / 130</gadget>
<output>2/13 = around 0.153846</output>

<gadget id="calculator">520 * (2/13)</gadget>
<output>80</output>

<gadget id="calculator">80 - 20</gadget>
<output>60</output>

<result>60</result>