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Exam GRE Section 2 Quantitative topic 2 question 44 discussion

Actual exam question from Test Prep's GRE Section 2 Quantitative
Question #: 44
Topic #: 2
[All GRE Section 2 Quantitative Questions]

SIMULATION -
The number of attendees at a certain annual conference is 256 this year and has always doubled every five years. How many people attended the conference 20 years ago?
Click on the answer box, then type in a number. Backspace to erase.

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Suggested Answer: Explanation
Divide by 2 four times, as follows:
5 years ago: 128
10 years ago: 64
15 years ago: 62
20 years ago: 16
by MHALLAQ at Jan. 31, 2024, 6:24 a.m.

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MHALLAQ
3 months ago
There is a typo in the explanation below. 5 years ago: 128 10 years ago: 64 15 years ago: 62 >>>>> Should be 32 20 years ago: 16
upvoted 1 times
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