Xiao Ming's mother bought a color TV with a 20% discount at the home appliance supermarket, and spent 2,240 yuan. After a few days, this color TV was sold at a 25% discount. How much does it cost to buy such a color TV?
小明的妈妈在家电超市买了一台打八折的彩电，用了2240元，过了几天，这种彩电以七五折出售，这时买一台这样的彩电要花多少钱？
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">2_240 / (4/5)</gadget>
<output>2_800</output>

<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">2_800 * (3/4)</gadget>
<output>2_100</output>

<result>2_100</result>