A batch of fruit is shipped from the fruit shop, 30% of it is sold on the first day, and 25% is sold on the second day, leaving 90 kilograms. How many kilograms of this batch of fruit are there in total?
水果店运来一批水果，第一天卖了30%，第二天卖了25%，还剩下90千克，这批水果一共多少千克？
<gadget id="calculator">30 / 100</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (3/10) - (1/4)</gadget>
<output>9/20 = around 0.45</output>

<gadget id="calculator">90 / (9/20)</gadget>
<output>200</output>

<result>200</result>