The biological team conducted a corn seed germination test. 285 seeds germinated, and the germination rate was 95%. How many seeds were tested this time?
生物小组进行玉米种子发芽试验，有285粒种子发芽，发芽率是95%，这次有多少粒种子试验？
<gadget id="calculator">95 / 100</gadget>
<output>19/20 = around 0.95</output>

<gadget id="calculator">285 / (19/20)</gadget>
<output>300</output>

<result>300</result>