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k is an integer such that 9(3)^3 + 4 = k

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k is an integer such that 9(3)^3 + 4 = k [#permalink] New post 07 Jun 2017, 00:54
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k is an integer such that 9(3)^3 + 4 = k

Quantity A
Quantity B
The average of the
prime factors of k
16


A) Quantity A is greater.
B) Quantity 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: k is an integer such that 9(3)^3 + 4 = k [#permalink] New post 11 Oct 2017, 07:16
What is essential here is to notice that k is defined as a sum of two numbers so that in order to compute its prime factors, we must first find k.

Thus k = 247, then its prime factors are 17 and 19, whose mean is 17+19/2 = 16

Answer C
Re: k is an integer such that 9(3)^3 + 4 = k   [#permalink] 11 Oct 2017, 07:16
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k is an integer such that 9(3)^3 + 4 = k

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