A color TV, if sold at a 10% discount, can make a profit of 215 yuan. If you sell it at a 20% discount, you will lose 125 yuan. How much is the price of this color TV?
一种彩电，如果打九折出售，可盈利215元．如果打八折出售，就亏本125元，这种彩电的定价是多少元？
<gadget id="calculator">215 + 125</gadget>
<output>340</output>

<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(9/10) - (4/5)</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">340 / (1/10)</gadget>
<output>3_400</output>

<result>3_400</result>