There are 50 students in a math test class, 30 are excellent, 10 are good, 6 are passing, and 4 are failing. What is the pass rate for this test.
一次数学测试全班有50人，优秀的30人，良好10人，及格6人，不及格4人．这次测试的及格率是多少．
<gadget id="calculator">30 + 10 + 6</gadget>
<output>46</output>

<gadget id="calculator">46 / 50</gadget>
<output>23/25 = around 0.92</output>

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

<gadget id="calculator">(23/25) * 1</gadget>
<output>23/25 = around 0.92</output>

<result>23/25 = around 0.92</result>