If the ratio of the amount of money between A and B is 3:1, and A gives B 3.6 yuan, then the amount of money between A and B is equal. A was originally more than B by how many yuan.
如果甲乙两人的钱数比是3：1，甲给乙3.6元，则甲乙两人的钱数相等．甲原来比乙多多多少元元．
<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">3.6 * 2</gadget>
<output>7.2</output>

<result>7.2</result>