It is known that number A and number B are the reciprocals of each other. If the decimal point of number A is moved one place to the left and it is 0.02, what is the number B?
已知甲数和乙数互为倒数，如果把甲数的小数点向左移动一位后是0.02，则乙数是多少．
<gadget id="calculator">0.02 * 10</gadget>
<output>0.2</output>

<gadget id="calculator">1 / 0.2</gadget>
<output>5</output>

<result>5</result>