The number A is 20, the number B is 25, and the number B is the number of A.
甲数是20，乙数是25，乙数是甲数的多少．
<gadget id="calculator">25 / 20</gadget>
<output>5/4 = around 1.25</output>

<result>5/4 = around 1.25</result>