Guangming Primary School has planted 475 trees, and the survival rate is 95%. How many trees were planted in total?
光明小学种活了475棵树，成活率是百分之九十五，原来共种了多少棵树？
<gadget id="calculator">95 / 100</gadget>
<output>19/20 = around 0.95</output>

<gadget id="calculator">475 / (19/20)</gadget>
<output>500</output>

<result>500</result>