A store sells 18 toy cars in the morning and 25 of the same toy cars in the afternoon, earning 122.5 yuan more in the afternoon than in the morning. How much did you earn in total on this day?
某商店上午卖出玩具车18辆，下午卖出同样的玩具车25辆，下午比上午多收入122.5元．这一天共收人多少元？
<gadget id="calculator">25 - 18</gadget>
<output>7</output>

<gadget id="calculator">122.5 / 7</gadget>
<output>17.5</output>

<gadget id="calculator">25 + 18</gadget>
<output>43</output>

<gadget id="calculator">17.5 * 43</gadget>
<output>752.5</output>

<result>752.5</result>