The quality supervision department inspected a batch of products. In the morning, 300 pieces were tested, and 15 pieces were unqualified. In the afternoon, 200 pieces were tested. The pass rate in the afternoon was 98%. What is the pass rate of this batch of products?
质监部门在一批产品检测，上午检测了300件，有15件不合格，下午检测了200件，下午的合格率是98%，这批产品的合格率是多少．
<gadget id="calculator">300 - 15</gadget>
<output>285</output>

<gadget id="calculator">98 / 100</gadget>
<output>49/50 = around 0.98</output>

<gadget id="calculator">200 * (49/50)</gadget>
<output>196</output>

<gadget id="calculator">285 + 196</gadget>
<output>481</output>

<gadget id="calculator">300 + 200</gadget>
<output>500</output>

<gadget id="calculator">481 / 500</gadget>
<output>481/500 = around 0.962</output>

<result>481/500 = around 0.962</result>