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\(y\) is odd integerGmat_mission wrote: ↑Sat Aug 22, 2020 3:20 amIf \(y\) is an odd integer and the product of \(x\) and \(y\) equals 222, what is the value of \(x?\)
(1) \(x\) is a prime number.
(2) \(y\) is a 3 digit number.
Answer: A
Source: Veritas Prep
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Hi @swerve,swerve wrote: ↑Sat Aug 22, 2020 3:44 am\(y\) is odd integerGmat_mission wrote: ↑Sat Aug 22, 2020 3:20 amIf \(y\) is an odd integer and the product of \(x\) and \(y\) equals 222, what is the value of \(x?\)
(1) \(x\) is a prime number.
(2) \(y\) is a 3 digit number.
Answer: A
Source: Veritas Prep
\(xy= 222= 2\cdot 3 \cdot 37\)
1)\(x\) is a prime number.
The only possible is \(x=2\) and \(y=3\cdot 37\)
Sufficient \(\Large{\color{green}\checkmark}\)
2) \(y\) is a \(3\) digit number.
\(If y=111, x=2, xy=222\)
If \(y=102, x=\dfrac{222}{102}\) (The trick here is that it is not mentioned that x is INTEGER. one might think intuitively that x is integer because y is integer)
Insufficient \(\Large{\color{red}\chi}\)
Therefore, A
