The ratio of A, B, and C is 4:5:3. It is known that the number of A is 13.6. How much more is the number of B than the number of C?
甲、乙、丙三个数的比是4：5：3，已知甲数是13.6，乙数比丙数多多少？
<gadget id="calculator">13.6 / 4</gadget>
<output>3.4</output>

<gadget id="calculator">5 - 3</gadget>
<output>2</output>

<gadget id="calculator">3.4 * 2</gadget>
<output>6.8</output>

<result>6.8</result>