The sum of A and B is 24.2. After moving the decimal point of A to the right, it is exactly equal to B. What is A?
甲乙两数的和是24.2，把甲数的小数点向右移动一位后，恰好等于乙数，甲数是多少．
<gadget id="calculator">10 + 1</gadget>
<output>11</output>

<gadget id="calculator">24.2 / 11</gadget>
<output>2.2</output>

<result>2.2</result>