Joe had an average of 95 on his first 5 tests. He had an average score of 90 on his first 6 tests. What did he score on the 6th test?	Pick one.
A) 95	B) 85	C) 65	D) 45	E) 30
The sum of Joe's first 5 tests is 95 * 5 and the sum of his first 6 tests is 90*6, so he received 90*6 - 95*5 on his 6th test. You can do the arithmetic and the correct answer is 65.
<result>C</result>
Joe had an average of 95 on his first 5 tests. He had an average score of 90 on his first 6 tests. What did he score on the 6th test?