If 250 seeds are used for a germination test, 15 of them fail to germinate. What is the germination rate of the seeds?
用250粒种子做发芽试验，有15粒没发芽，种子的发芽率是多少．
<gadget id="calculator">250 - 15</gadget>
<output>235</output>

<gadget id="calculator">235 / 250</gadget>
<output>47/50 = around 0.94</output>

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

<gadget id="calculator">(47/50) * 1</gadget>
<output>47/50 = around 0.94</output>

<result>47/50 = around 0.94</result>