The ratio of the number of boys and girls in a class is 5:4, and there are 6 fewer girls than boys. How many people are there in the class?
一个班的男女生人数之比是5：4，女生比男生少6人，全班有多少人．
<gadget id="calculator">5 - 4</gadget>
<output>1</output>

<gadget id="calculator">6 / 1</gadget>
<output>6</output>

<gadget id="calculator">5 * 6</gadget>
<output>30</output>

<gadget id="calculator">4 * 6</gadget>
<output>24</output>

<gadget id="calculator">30 + 24</gadget>
<output>54</output>

<result>54</result>