The average GPA for 6th graders is 93, the 7th graders is 2 more than the 6th graders and the 8th graders average GPA is 91. What is the average GPA for the school? Let's answer step by step:
The 7th graders average GPA is 2 more than the 6th graders GPA of 93 so 93 + 2 = 95. If you combine the GPA for all three grades then they have 93 + 95 + 91 = 279. The average GPA for the school is 279 / 3 = 93. The answer: 93.