A color TV is priced at 3,860 yuan, and the sale is 10% off and the profit is still 25%. How much is the purchase price of the color TV? (Solution of column equation)
一种彩电售价为3860元，销售打九折出售仍获利润25%，彩电进价多少元？(列方程解)
<gadget id="calculator">3_860 * 0.9</gadget>
<output>3_474</output>

<gadget id="calculator">1 + 0.25</gadget>
<output>1.25</output>

<gadget id="calculator">3_474 / 1.25</gadget>
<output>2_779.2</output>

<result>2_779.2</result>