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23 May 2023, 09:30
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Difficulty:
15%
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Question Stats:
77% (00:55) correct
23%
(01:01)
wrong
based on 69
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If the average (arithmetic mean) of a, b, and c equal to (a + 2b)/3, what is the value of b?
(1) a = 1
(2) c = 2
(A) Statement 1 alone is sufficient, but statement 2 alone is not.
(B) Statement 2 alone is sufficient, but statement 1 alone is not.
(C) Both statements together are sufficient, but neither alone is sufficient.
(D) Each statement alone is sufficient.
(E) Neither statement is sufficient, even when combined.
(1) a = 1
(2) c = 2
(A) Statement 1 alone is sufficient, but statement 2 alone is not.
(B) Statement 2 alone is sufficient, but statement 1 alone is not.
(C) Both statements together are sufficient, but neither alone is sufficient.
(D) Each statement alone is sufficient.
(E) Neither statement is sufficient, even when combined.
23 May 2023, 15:25
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Bunuel
Average of a, b, and c =\(\frac{ (a + b + c)}{3}\) = \(\frac{(a + 2b)}{3}\)
Therefore b = c.
Statement 1
(1) a = 1
No information on b, hence the statement is not sufficient. We can eliminate A and D.
Statement 2
(2) c = 2
As b = c, the statement is sufficient.
Option B
23 May 2023, 23:03
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If the average (arithmetic mean) of a, b, and c equal to (a + 2b)/3, what is the value of b?
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