Questions about the world of GMAT Math from other sources and general math related questions.
Black Hole
Students
 
Posts: 9
Joined: Tue Apr 10, 2012 11:54 pm
 

DS Problem>

by Black Hole Thu Nov 07, 2013 10:36 pm

I wish to have this solution specially from
Ron Purewal....................

If 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.

My Solution:Is it wrong?
Correct Answer "D"...From the question we can have x=222/y where y is odd......From statement (1): x is prime. if I put the value of y=111 then x=2 which is prime and if I put ANY VALUE of y(without 111) x CAN'T BE PRIME). So statement (1) is SUFFICIENT.............. From statement (2): y is a 3 digit number, that means if I put the value of y from 100 to 999(which are odd) then I'll get many more values of x but I can't accept these values without 2 because, in QUESTION it is said that the product of x and y MUST BE=222(EVEN) AND Y IS ODD NUMBER. I know that(EVEN multiply ODD=EVEN) THAT MEANS,though x has no DIRECT restriction in STATEMENT 2 but x MUST BE EVEN. So, statement 2 definitely SUFFICIENT....SO RECAP THE ANSWER IS ''D"......thanks to all.

Source: https://www.facebook.com/VeritasPrep?hc ... n=timeline

it is from VeritasPrep question of the day....
Last edited by Black Hole on Sun Nov 10, 2013 3:18 am, edited 2 times in total.
tim
Course Students
 
Posts: 5665
Joined: Tue Sep 11, 2007 9:08 am
Location: Southwest Airlines, seat 21C
 

Re: DS Problem>

by tim Fri Nov 08, 2013 7:31 am

Ron would tell the same thing I will - no help on these questions if you don't follow the forum rules. We need verification of the source of this problem and need to know it is a source we're allowed to discuss on the forum.
Tim Sanders
Manhattan GMAT Instructor

Follow this link for some important tips to get the most out of your forum experience:
https://www.manhattanprep.com/gmat/forums/a-few-tips-t31405.html