A classmate has an average score of 85 in Chinese, Mathematics, and English, and 90 in English. What is the average score of Chinese and Mathematics?
一位同学语文、数学、英语的平均成绩是85分，其中英语得了90分，语文、数学两科平均得多少分？
<gadget id="calculator">85 * 3</gadget>
<output>255</output>

<gadget id="calculator">255 - 90</gadget>
<output>165</output>

<gadget id="calculator">165 / 2</gadget>
<output>165/2 = around 82.5</output>

<result>165/2 = around 82.5</result>