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The average (arith-metic mean) of 13, 31, and 81

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The average (arith-metic mean) of 13, 31, and 81 [#permalink] New post 21 Jun 2018, 10:49
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Question Stats:

95% (00:17) correct 5% (00:54) wrong based on 20 sessions
Quantity A
Quantity B
The average (arithmetic mean) of 13, 31, and 81
The average (arithmetic mean) of 13, 30, and 81


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.
[Reveal] Spoiler: OA

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Re: The average (arith-metic mean) of 13, 31, and 81 [#permalink] New post 23 Jun 2018, 06:05
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Carcass wrote:
Quantity A
Quantity B
The average (arithmetic mean) of 13, 31, and 81
The average (arithmetic mean) of 13, 30, and 81




Here by looking at the value we can skip the calculation -

In statement 1; the three nos. we have are = 13, 31 and 81

In statement 2; the three nos. we have are = 13, 30 and 81

So clearly statement 1 > statement 2 (since the number 31 > 30 and so the arithmetic mean of statement1 > arithmetic mean of statement1 )
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Re: The average (arith-metic mean) of 13, 31, and 81   [#permalink] 23 Jun 2018, 06:05
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The average (arith-metic mean) of 13, 31, and 81

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