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30 Jan 2024, 09:07
Kudos
Bookmarks
D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
94% (00:35) correct
6%
(01:28)
wrong
based on 490
sessions
History
Date
Time
Result
Not Attempted Yet
If \(\sqrt{9x - 1} = \sqrt{4x}\), then x =
A. 1/9
B. 1/7
C. 1/4
D. 1/5
E. 1
2024-01-30_19-58-02.png [ 10.35 KiB | Viewed 4624 times ]
A. 1/9
B. 1/7
C. 1/4
D. 1/5
E. 1
Attachment:
2024-01-30_19-58-02.png [ 10.35 KiB | Viewed 4624 times ]
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30 Jan 2024, 09:11
Kudos
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guddo
Squaring \(\sqrt{9x - 1} = \sqrt{4x}\) gives:
- \((\sqrt{9x - 1})^2 = (\sqrt{4x})^2\)
\(9x - 1 = 4x\)
\(5x = 1\)
\(x=\frac{1}{5}\)
Answer: D.
P.S. Unlike other GMAT questions, this question does not have options in ascending or descending order, which is weird.
17 Mar 2026, 11:31
Kudos
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