GRE Question of the Day (November 21)

By - Nov 21, 02:00 AM Comments [0]

Math

Each number SN in a sequence can be expressed as a function of the preceding number (SN–1) as follows: SN = \frac{2}{3} SN–1 – 4. Which of the following equations correctly expresses the value of SN in this sequence in terms of SN+2?

A) Sn = \frac{9}{4} Sn+2 +18

B) Sn = \frac{4}{9} Sn+2 +15

C) Sn = \frac{9}{4} Sn+2 + 15

D) Sn = \frac{4}{9} Sn+2 - 8

E) Sn = \frac{2}{3} Sn+2 -8

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

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