The fruit shop sells 300 kilograms of oranges, 55 kilograms less pears than oranges, and twice as many apples as pears. How many kilograms are the apples sold?
水果店卖出桔子300千克，卖出的梨比桔子少55千克，卖出的苹果是梨的2倍，卖出的苹果是多少千克？
<gadget id="calculator">300 - 55</gadget>
<output>245</output>

<gadget id="calculator">245 * 2</gadget>
<output>490</output>

<result>490</result>