The number A is 1 more than 16% of the number B, the number A is 20, find the number B.
甲数比乙数的16%多1，甲数是20，求乙数．
<gadget id="calculator">20 - 1</gadget>
<output>19</output>

<gadget id="calculator">16 / 100</gadget>
<output>4/25 = around 0.16</output>

<gadget id="calculator">19 / (4/25)</gadget>
<output>475/4 = around 118.75</output>

<result>475/4 = around 118.75</result>