In this mid-term exam, Xiaohua's scores in Chinese, Math, and English are 9:10:8. The average score of these three subjects is 90 points.
小华这次期中考试，语数英三科的成绩比是9：10：8，这三科的平均分是90分，则数学考了多少分．
<gadget id="calculator">90 * 3</gadget>
<output>270</output>

<gadget id="calculator">9 + 10 + 8</gadget>
<output>27</output>

<gadget id="calculator">10 / 27</gadget>
<output>10/27 = around 0.37037</output>

<gadget id="calculator">270 * (10/27)</gadget>
<output>100</output>

<result>100</result>