A: B=3:5, A is 10 less than B, how much is B?
甲：乙=3：5，甲比乙少10，乙是多少．
<gadget id="calculator">5 - 3</gadget>
<output>2</output>

<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">5 * 5</gadget>
<output>25</output>

<result>25</result>