If 250 seeds are used for a germination test, 25 of them do not germinate. What is the germination rate?
用250粒种子做发芽试验，有25粒没有发芽，发芽率是多少．
<gadget id="calculator">250 - 25</gadget>
<output>225</output>

<gadget id="calculator">225 / 250</gadget>
<output>9/10 = around 0.9</output>

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

<gadget id="calculator">(9/10) * 1</gadget>
<output>9/10 = around 0.9</output>

<result>9/10 = around 0.9</result>