shopping mall sells 15 electric fans in the morning and 20 electric fans in the afternoon. The price of each electric fan is 90 yuan. How much is the income of selling electric fans in this shopping mall on this day?
某商场上午卖出15台电扇，下午卖出20台电扇，每台电扇的价钱是90元，这个商场这天卖电扇的收入是多少钱？
<gadget id="calculator">15 + 20</gadget>
<output>35</output>

<gadget id="calculator">90 * 35</gadget>
<output>3_150</output>

<result>3_150</result>