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x-value: 39
Result: 39
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
87% (01:46) correct
13%
(01:47)
wrong
based on 434
sessions
History
Date
Time
Result
Not Attempted Yet
\(f(x)\) 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.
Identify one x-value that, entered into function f(x), would yield an appropriate result. Select only one answer in each column.
| x-value | Result | ----------- |
| 24 | ||
| 39 | ||
| 48 | ||
| 68 | ||
| 256 |
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Official Answer
x-value: 39
Result: 39
01 May 2013, 20:04
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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".
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".
arpanpatnaik
GMAT 1: 640 Q42 V37
Posts: 101
08 May 2013, 02:50
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srcc25anu
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.
Regards,
Arpan
