Red Star Furniture Store shipped a batch of new desks, sold 8 on the first day, and sold 15 on the second day. The income on the second day was 1,820 yuan more than the first day. How much was the income on the second day?
红星家具店运来一批新式公桌，第一天卖出8张，第二天卖出15张，第二天比第一天多收入1820元，第二天收入多少元？
<gadget id="calculator">15 - 8</gadget>
<output>7</output>

<gadget id="calculator">1_820 / 7</gadget>
<output>260</output>

<gadget id="calculator">260 * 15</gadget>
<output>3_900</output>

<result>3_900</result>