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The average (arithmetic mean) of $x, y$, and 12 is 8.
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08 Oct 2025, 01:18
08 Oct 2025, 01:18
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The average (arithmetic mean) of $x, y$, and 12 is 8.
Quantity A |
Quantity B |
\(\frac{x+y}{2} \) |
8 |
- Part of the project: PrepClub Daily GRE Quant Questions: Arithmetic, Algebra, Geometry & DA
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Re: The average (arithmetic mean) of $x, y$, and 12 is 8.
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08 Oct 2025, 01:42
08 Oct 2025, 01:42
1
The average (arithmetic mean) of x, y, and 12 is 8.
(x + y + 12) / 3 = 8
Multiply both sides by 3:
x + y + 12 = 24
Subtract 12 from both sides:
x + y = 12
Now find the average of x and y:
(x + y) / 2 = 12 / 2 = 6
Answer: B
So, Quantity A = 6 and Quantity B = 8.
Since 6 < 8, the answer is B.
(x + y + 12) / 3 = 8
Multiply both sides by 3:
x + y + 12 = 24
Subtract 12 from both sides:
x + y = 12
Now find the average of x and y:
(x + y) / 2 = 12 / 2 = 6
Answer: B
So, Quantity A = 6 and Quantity B = 8.
Since 6 < 8, the answer is B.
gmatclubot
Re: The average (arithmetic mean) of $x, y$, and 12 is 8. [#permalink]
08 Oct 2025, 01:42
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