A sporting goods store purchased 100 footballs and 80 basketballs from the wholesale department, and spent a total of 2,800 yuan; when retailing in the store, the price of each football was increased by 5%, and the price of each basketball was increased by 10%, so that the total income after selling all 3020 yuan, how much is the original total of a football and a basketball.
某体育用品商店，从批发部购进100个足球，80个篮球，共花去2800元；在商店零售时，每个足球加价5%，每个篮球加价10%，这样全部卖出后共收入3020元，原来一个足球和一个篮球共多少元．
<gadget id="calculator">20 + 12</gadget>
<output>32</output>

<result>32</result>