32% of the number A is equivalent to 25% of the number B, the number A is 40, what is the number B?
甲数的32%相当于乙数的25%，甲数是40，乙数是多少．
<gadget id="calculator">32 / 100</gadget>
<output>8/25 = around 0.32</output>

<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(8/25) / (1/4)</gadget>
<output>32/25 = around 1.28</output>

<gadget id="calculator">40 * (32/25)</gadget>
<output>256/5 = around 51.2</output>

<result>256/5 = around 51.2</result>