The number of A is 48, the number of A is twice the number of B, what is the sum of the two numbers of A and B?
甲数是48，甲数是乙数的2倍，甲、乙两数的和是多少．
<gadget id="calculator">48 / 2</gadget>
<output>24</output>

<gadget id="calculator">24 + 48</gadget>
<output>72</output>

<result>72</result>