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2 part analysis

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Manager
Manager
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Joined: 11 Jun 2010
Posts: 84
Followers: 0

Kudos [?]: 9 [0], given: 17

2 part analysis [#permalink] New post 30 Apr 2013, 04:10
f(x) is a function such that f(x) = s(x)+p(x) , where s(x) is the sum of all the digits of x and p(x) is the product of all the digits of x .

Identify one x-value that, entered into function f(x) , would yield an appropriate result. Select only one answer in each column.

Options for x-value:
A. 48
B. 39
C. 24
D. 256
E. 68

Options for result:
A. 48
B. 39
C. 24
D. 256
E. 68

[Reveal] Spoiler:
OA: B and B
Senior Manager
Senior Manager
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Joined: 16 Dec 2011
Posts: 453
Followers: 9

Kudos [?]: 144 [0], given: 70

Re: 2 part analysis [#permalink] New post 01 May 2013, 19:04
What is the source of the question?
Wordings of the question does not convey the question properly. It is not clear that "appropriate result" is appropriate to what. Is the question asking for the case where x = f(x), or is the question asking to find one value of x from "Options for x-value" for which there is a corresponding f(x) in "Options for result".
Manager
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Joined: 25 Feb 2013
Posts: 123
Location: India
Concentration: General Management, Technology
GMAT 1: 640 Q42 V37
GPA: 3.5
WE: Web Development (Computer Software)
Followers: 11

Kudos [?]: 66 [0], given: 14

GMAT ToolKit User
Re: 2 part analysis [#permalink] New post 08 May 2013, 01:50
srcc25anu wrote:
f(x) is a function such that f(x) = s(x)+p(x) , where s(x) is the sum of all the digits of x and p(x) is the product of all the digits of x .

Identify one x-value that, entered into function f(x) , would yield an appropriate result. Select only one answer in each column.

Options for x-value:
A. 48
B. 39
C. 24
D. 256
E. 68

Options for result:
A. 48
B. 39
C. 24
D. 256
E. 68

[Reveal] Spoiler:
OA: B and B


I guess if we assume, Column 1 represents all the values for var x, and Column 2 represents the values of f(x), the values 39 and 39 satisfy for obvious reasons.
f(39) = s(39) + p(39)
=> 12 + 27 = 39.

But as previously mentioned, the question does offer some ambiguity.

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Arpan
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Re: 2 part analysis   [#permalink] 08 May 2013, 01:50
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