If x and y are prime numbers, is y(x-3) odd?
(1) x > 10
(2) y < 3
This is from the Kaplan 2013 book, page 562 #11
![]()
(1) x > 10
(2) y < 3
This is from the Kaplan 2013 book, page 562 #11
[Reveal] Spoiler:
The answer is D
I put B. I don't understand how (1) alone can be sufficient. Because when you plug in any prime number for x>10 using (1) guidelines, you will get an ODD number for (x-3) however we don't know the value of y, what if its 2 or 3, that can change the yes/no answer to the question. Please help the explanation is not thorough and its been bugging me for so long.
I put B. I don't understand how (1) alone can be sufficient. Because when you plug in any prime number for x>10 using (1) guidelines, you will get an ODD number for (x-3) however we don't know the value of y, what if its 2 or 3, that can change the yes/no answer to the question. Please help the explanation is not thorough and its been bugging me for so long.