A bundle of rope is 125 meters long, 40% of the total length is used for the first time, and 47 meters for the second time. After using it twice, how many meters is the rope shortened?
一捆绳子长125米，第一次用去全长的40%，第二次用去47米．用了两次后，这根绳子短了多少米？
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">125 * (2/5)</gadget>
<output>50</output>

<gadget id="calculator">50 + 47</gadget>
<output>97</output>

<result>97</result>