Gary had an average score of 70 on his first four quizzes. He had an
average score of 75 on his first five quizzes. What score did he receive on
his fifth quiz?  Select the correct option:
A) 90
B) 95
C) 65
D) 42
E) 43
The sum of Gary's first 4 scores is 4 Â· 70 and the sum of his first 5 scores is 5 Â· 75, so he received   5 Â· 75 âˆ’ 4 Â· 70 on his 5th quiz. You can do the arithmetic or note that the answer ends in a 5 and eliminate answer C because it is lower than the average. The correct answer is 95.
<result>B</result>
Gary had an average score of 70 on his first four quizzes. He had an
average score of 75 on his first five quizzes. What score did he receive on
his fifth quiz?