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sqrt of 255
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02 Mar 2021, 08:52
02 Mar 2021, 08:52
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Question Stats:
94% (00:37) correct
5% (01:33) wrong based on 18 sessions
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Quantity A |
Quantity B |
\(\sqrt[4]{255}\) |
\(4\) |
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
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sqrt of 255
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02 Mar 2021, 09:03
02 Mar 2021, 09:03
1
Carcass wrote:
Quantity A |
Quantity B |
\(\sqrt[4]{255}\) |
\(4\) |
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.
Since we have a fourth root in the question, the number under the root must be a perfect fourth to have an integer value
255 is approximately equal to 256 which is \(4^4\)
Col. A: a number just smaller than 4
Col. B: 4
Hence, option B
sqrt of 255
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02 Mar 2021, 09:05
02 Mar 2021, 09:05
2
Raise both the quantity to the power of 4
Qt A = 255
Qt B = \(4^4\) = 256
Qt B > Qt A
Answer B
Qt A = 255
Qt B = \(4^4\) = 256
Qt B > Qt A
Answer B
