A and B share a certain amount of RMB. It is known that A owns 55% of the total amount. If A takes out 75 yuan to B, then B owns 60% of the total amount. How many yuan does A originally have?
甲、乙两人共有人民币若干元，已知甲有总数的55%，如果甲取出75元给乙，则乙有总数的60%，甲原来有多少元元．
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">55 / 100</gadget>
<output>11/20 = around 0.55</output>

<gadget id="calculator">1 - (11/20)</gadget>
<output>9/20 = around 0.45</output>

<gadget id="calculator">(3/5) - (9/20)</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">75 / (3/20)</gadget>
<output>500</output>

<gadget id="calculator">500 * (11/20)</gadget>
<output>275</output>

<result>275</result>