It is known that the sum of the two numbers A and B is 27.5. If the decimal point of A is moved to the left by one bit, it is equal to the number B. What is the number B?
已知甲、乙两个数的和为27.5，将甲数的小数点向左移动一位，就等于乙数，则乙数是多少．
<gadget id="calculator">10 + 1</gadget>
<output>11</output>

<gadget id="calculator">27.5 / 11</gadget>
<output>2.5</output>

<result>2.5</result>