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5^-8 or 25^-4
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23 Feb 2021, 15:15
23 Feb 2021, 15:15
Expert Reply
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Question Stats:
97% (00:17) correct
2% (00:06) wrong based on 36 sessions
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Quantity A |
Quantity B |
\(5^{-8} \) |
\(25^{-4}\) |
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
5^-8 or 25^-4
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23 Feb 2021, 16:40
23 Feb 2021, 16:40
1
Solution:
Qty A:\( 5^-^8\)
Qty B: \(25^-^4=5^-^2^*^-^4=5^-^8\)
Thus, Qty A=Qty B
IMO C
Hope this helps
Qty A:\( 5^-^8\)
Qty B: \(25^-^4=5^-^2^*^-^4=5^-^8\)
Thus, Qty A=Qty B
IMO C
Hope this helps
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5^-8 or 25^-4
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25 Feb 2021, 08:02
25 Feb 2021, 08:02
1
Carcass wrote:
Quantity A |
Quantity B |
\(5^{-8} \) |
\(25^{-4}\) |
Given:
Quantity A: \(5^{-8} \)
Quantity B: \(25^{-4}\)
Rewrite Quantity B with a base of 5.
Quantity A: \(5^{-8} \)
Quantity B: \((5^2)^{-4}\)
Apply the Power of a Power law to Quantity B:
Quantity A: \(5^{-8} \)
Quantity B: \(5^{-8}\)
Answer: C
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