A batch of apples is shipped from the store. On the first day, 1/4 of the total number is sold (1/4) more than 20 kilograms. At this time, the ratio of the sold to the rest is 5:2. How many kilograms is this batch of apples?
商店运来一批苹果，第一天卖了总数的(1/4)多20千克，这时卖出的与剩下的比是5：2，这批苹果多少千克？
<gadget id="calculator">5 + 2</gadget>
<output>7</output>

<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(2/7) - (1/4)</gadget>
<output>1/28 = around 0.035714</output>

<gadget id="calculator">20 / (1/28)</gadget>
<output>560</output>

<result>560</result>