The number A is 2.7 greater than the number B, and the decimal point of the number B is moved one place to the right to be equal to the number A. What is the number A?
甲数比乙数大2.7，乙数的小数点向右移动一位就等于甲数，则甲数是多少．
<gadget id="calculator">2.7 * 10</gadget>
<output>27</output>

<gadget id="calculator">10 - 1</gadget>
<output>9</output>

<gadget id="calculator">27 / 9</gadget>
<output>3</output>

<result>3</result>