The ratio of the numbers A and B is 3:5, the number B is more than the number A ((())/(())), the number A is 15, what is the number B.
甲、乙两数的比是3：5，乙数比甲数多((())/(()))，甲数是15，乙数是多少．
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">15 / (3/5)</gadget>
<output>25</output>

<result>25</result>