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M(r, s, t) denotes the average (arithmetic mean) of r, s, and t, and

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M(r, s, t) denotes the average (arithmetic mean) of r, s, and t, and [#permalink] New post   31 May 2021, 03:22
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M(r, s, t) denotes the average (arithmetic mean) of r, s, and t, and M(x, y) denotes the average of x and y


Quantity A
Quantity B
\( M(70,80,90)\)
\(M(x,90)\) where \(x =M(70,80) \)



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.

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Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
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Re: M(r, s, t) denotes the average (arithmetic mean) of r, s, and t, and [#permalink] New post   31 May 2021, 20:38
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Qt A

Avg = \(\frac{70+80+90}{3}\) = \(80\)

Qt B

\(x =M(70,80) \) = \(75\)

Avg = \(\frac{75+90}{2}\) = \(82.5\)

Qt B > Qt A

Answer B
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Re: M(r, s, t) denotes the average (arithmetic mean) of r, s, and t, and [#permalink]
31 May 2021, 20:38
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