A store buys a batch of electrical appliances. The purchase price of each appliance is 240 yuan, and the selling price is 268 yuan. After the sale, the total profit is 560 yuan. How many appliances are there in this batch?
某商店购进一批电器，每台电器的进价是240元，售价是268元，售完后共赢利560元．这批电器有多少台？
<gadget id="calculator">268 - 240</gadget>
<output>28</output>

<gadget id="calculator">560 / 28</gadget>
<output>20</output>

<result>20</result>