Hi!!

So the only thing we know is Class A has the highest number of students who score above 80 and Class B has the highest number of students who scored above 90.

For eg. 50 students in class A scored above 80, but only 10 of them score above 90. Thus, there are 40 students who scored a score between 80-90. As for Class B, lets say there are 20 students who scored above 90 and 10 who score between 80-90. Thus it is possible that the number of student score between 80-90 in Class A> Class B

This is just an example, we cannot find mean or avg or median from the given information. So all the answers having mean or median can be safely negated. (Option A & E)

The previous statements best support which of the following conclusions?

A) Students in class B had a higher average score on the examination than did the students in class A.--OUT
B) More students in class A scored between 80 percent and 90 percent than in class B.--This could be possible as discussed above- Correct
C) Class A has more students than class---Cannot be interpreted--OUT
D) More students in class A scored above 95 percent than in class B.--95% is not discussed and we don't know the number of students to find this--OUT
E) The median score for class A is above 80 percent--OUT

IMO B

Hope this helps!