If S = {2, 3, x, y}, what is the value of x + y?

Question

(1) x and y are prime numbers.
(2) 3, x, and y are consecutive odd integers in ascending order.

GMATBLACKBELT · Answer

1) x and y could be any of the primes. Insuff.

2) 3, 5, 7... odd consec integers in ascending order. Since they are consecutive we cant have 3, 9, 11, etc...

must be 3, 5, 7. 5+7=12. Suff.


Am i missing somethin really basic?


owell i say B.

jlgdr · Answer

Chose (C) but i'm afraid I might be wrong since I've read many of you chose (B)
My reasoning? 3,x, and y are consecutive odd integers in ascending order. When they say in ascending order do they mean literally in the same order as they state them (3,x, and y) or just in ascending order but could be x,3,y or 3,x,y etc...? For me it isn't clear but what do you guys think?

Bunuel · Answer

The correct answer is B.

We are told that  3, x, and y are consecutive odd integers  in ascending  order   .

stne · Answer

My guess is left to right shows ascending or descending order

3, 5, 7 here ascending 
3, 1, -1 here descending

so when it says 3, y and z are consecutive odd integers in ascending order then y and z must be 5 and 7 because if it was 3, 1 and -1 then it would become descending.

Bunuel · Answer

______
Absolutely.

Archit3110 · Answer

# 1:
x,y : can be any no so in sufficient

#2:
3,x,y are consective odd integers in ascending order so x,5,y 7

sufficient

IMO B

bumpbot · Answer

Automated notice from GMAT Club BumpBot: 

A member just gave Kudos to this thread, showing it’s still useful. I’ve bumped it to the top so more people can benefit. Feel free to add your own questions or solutions.

 This post was generated automatically.

If S = {2, 3, x, y}, what is the value of x + y?

Prep Toolkit

Top 5 GMAT Debrief Videos

615 to 715 in 15 Days (Ria's Strategies)

More than Quant/Verbal Abilities: Speed vs. Accuracy

745 with Only Self-Prep and GMAT Club

From 555 to 765: 210-point Improvement

Perfect 805 Score Debrief by Julia