sandy wrote:

A certain investment doubled in value every 9 years. If Saidah had $25,125 in the investment when she was 27 years old, what was the value of the investment when she retired at 63 years old?

(A) $50,250

(B) $150,750

(C) $201,000

(D) $251,250

(E) $402,000

We are given that Saidah’s investment doubled in value every 9 years, so let’s keep track how much she will have every 9 years, beginning with age 27:

Age 27: $25,125

Age 36: $50,250

Age 45: $100,500

Age 54: $201,000

Age 63: $402,000

Answer: E

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Jeffery Miller

Head of GRE Instruction

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