In a school with 5 classes, each class has 2 students less than the previous class. How many students are there in the largest class if the total number of students at school is 105?  Choose the correct choice from the following answers:
A) 24
B) 25
C) 26
D) 27
E) 28
Let x be the number of students in the largest class.   Then x + (x-2) + (x-4) + (x-6) + (x-8) = 105   5x -20 = 105   5x = 125   x = 25   The answer is 25.
<result>B</result>
In a school with 5 classes, each class has 2 students less than the previous class. How many students are there in the largest class if the total number of students at school is 105?