The Question and Answer section for Flowers for Algernon is a great resource to ask questions, find answers, and discuss the novel.
I'm not sure what specific question you are referring to. It could be when Charlie the validity of the Rorschach test.
Are you referring to the inkblot test? What chapter are you referring to?
Likely, the page numbers you were given came from a different publication. Page numbers vary in differents issues.