For a bottle of juice, 25% of the total is poured out for the first time, and 240 ml is poured out for the second time. The third pour is equal to the sum of the previous two, and it is just finished at this time. How many milliliters is this bottle of juice originally?
一瓶果汁，第一次倒出总数的25%，第二次倒出240毫升．第三次倒出的等于前两次的总和，这时正好倒完．这瓶果汁原来有多少毫升？
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4) - (1/4)</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">2 / (1/2)</gadget>
<output>4</output>

<gadget id="calculator">240 * 4</gadget>
<output>960</output>

<result>960</result>