GRE Question of the Day (December 21st)

Math

In a certain sequence, each term beyond the second term is equal to the average of the previous two terms. If \({A1}\) and \({A3}\) are positive integers, which of the following is not a possible value of \({A5}\)? A. \({\frac{{-9}}{{4}}}\) B. zero C. \({\frac{{9}}{{4}}}\) D. \({\frac{{75}}{{8}}}\) E. \({\frac{{41}}{{2}}}\)   Correct Answer - D - (click and drag your mouse to see the answer) Question Discussion & Explanation