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23 May 2023, 09:30
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B
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Difficulty:
15%
(low)
Question Stats:
77% (00:56) correct
23%
(01:02)
wrong
based on 62
sessions
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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
(1) a = 1
(2) c = 2
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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