A processing factory has produced two batches of parts, each of which is 50 pieces. The pass rate of the first batch is 90%, and the total pass rate of the two batches of parts is 92%. Find the pass rate of the second batch of parts.
某加工厂生产了两批零件，每批都是50个，第一批的合格率为90%，两批零件总的合格率为92%，求第二批零件的合格率．
<gadget id="calculator">50 + 50</gadget>
<output>100</output>

<gadget id="calculator">92 / 100</gadget>
<output>23/25 = around 0.92</output>

<gadget id="calculator">100 * (23/25)</gadget>
<output>92</output>

<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">50 * (9/10)</gadget>
<output>45</output>

<gadget id="calculator">92 - 45</gadget>
<output>47</output>

<gadget id="calculator">47 / 50</gadget>
<output>47/50 = around 0.94</output>

<gadget id="calculator">100 / 100</gadget>
<output>1</output>

<gadget id="calculator">(47/50) * 1</gadget>
<output>47/50 = around 0.94</output>

<result>47/50 = around 0.94</result>