A rope, A uses 1/4 of the full length, and B uses 12 meters. If both people use the same amount, what is the total length of the rope?
一根绳子，甲用去全长的(1/4)，乙用去12米，如果两人用去的同样多，这根绳子全长多少米．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">12 / (1/4)</gadget>
<output>48</output>

<result>48</result>