If y not equal to 3 and (3x)/y is a prime integer greater than 2, which of the following must be true?
I. x = y
II. y = 1
III. x and y are prime integers
(A) None
(B) I Only
(C) II Only
(D) III Only
(E) I and III
OA: A
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1000 PS Section I #20
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firdaus117
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ajith
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For 3x/y to be a primearzanr wrote:If y not equal to 3 and (3x)/y is a prime integer greater than 2, which of the following must be true?
I. x = y
II. y = 1
III. x and y are prime integers
(A) None
(B) I Only
(C) II Only
(D) III Only
(E) I and III
OA: A
Case 1: y =3 and x is a prime
Case 2: x=y
[spoiler]Since Case 1 is not possible
x=y, B[/spoiler]
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firdaus117
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How did you get Option B?Looks like a typo from you.ajith wrote:For 3x/y to be a primearzanr wrote:If y not equal to 3 and (3x)/y is a prime integer greater than 2, which of the following must be true?
I. x = y
II. y = 1
III. x and y are prime integers
(A) None
(B) I Only
(C) II Only
(D) III Only
(E) I and III
OA: A
Case 1: y =3 and x is a prime
Case 2: x=y
[spoiler]Since Case 1 is not possible
x=y, B[/spoiler]
Take x=10 and y=6 which contradicts all three statements.Option A
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abhi332
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let say 3x/y = 5If y not equal to 3 and (3x)/y is a prime integer greater than 2, which of the following must be true?
I. x = y
II. y = 1
III. x and y are prime integers
(A) None
(B) I Only
(C) II Only
(D) III Only
(E) I and III
for 3x/y to be 5 we should have y =3 which is not possible.
only answer of 3x/y can be 3 which is greater than 2 and when x =y
ANS is B
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ajith
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Not a Typo, but a mistake. I agreefirdaus117 wrote: How did you get Option B?Looks like a typo from you.
Take x=10 and y=6 which contradicts all three statements.Option A
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