After review, I understand why the answer to the question is B however I cannot follow the explanation fully. Can you please mathematically clarify where the (100)(2)^(1/2) came from?

Thanks!

Hi Tiff,

First of all, I apologize for the tardy response to your question - someone just alerted me that there were a few unanswered questions on here.

For this question, I'd love to help, but your question doesn't seem to match up with the first challenge question in book 8 (Data Sufficiency). Do you have the text, or the book/page number, of your question?