GRE Question of the Day (October 19)

Math

Each number SN in a sequence can be expressed as a function of the preceding number (SN–1) as follows: SN = 2323 SN–1 – 4. Which of the following equations correctly expresses the value of SN in this sequence in terms of SN+2?

A) Sn = 9494 Sn+2 +18
B) Sn = 4949 Sn+2 +15
C) Sn = 9494 Sn+2 + 15
D) Sn = 4949 Sn+2 - 8
E) Sn = 2323 Sn+2 -8

Question Discussion & Explanation

Correct Answer - C - (click and drag your mouse to see the answer)