BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem
TTP OnDemand GMAT Video Course
Featured Course

Target Test Prep GMAT OnDemand

Scott Woodbury-Stewart’s private virtual classroom — 400 hours of master-class video lessons for the GMAT Focus Edition.

  • 715+ score guarantee — highest in the industry (99th percentile)
  • 52 chapters · 1,500+ lessons · 4,000+ practice questions
  • 400 hours of video · 1,500+ instructor-led HD smartboard lessons
  • 300,000+ students accepted to Harvard, Stanford, Wharton, Booth & Sloan & more
  • 24/7 live support + weekly Zoom office hours with GMAT instructors
  • TTP AI Assist — 24/7 AI-powered virtual tutor for instant help
  • 1,200+ flashcards + AI-powered study assistant & daily calendar
  • OnDemand, LiveTeach & GMAT Bootcamp formats available
  • Also: GRE, SAT Math & Executive Assessment courses
  • MBA Admissions Consulting now available
  • 🏆 2025 EdTech Breakthrough Award: Test Prep Solution Provider of the Year
  • 200,000+ students served
  • 5-day free trial — $0 to start, no auto-billing, cancel anytime
★★★★★ 5.0 (559 reviews)
130-pt guarantee
$0 to start then $127/mo
Start Free 5-Day Trial Read 559 Reviews →

confused!

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
User avatar
Master | Next Rank: 500 Posts
Posts: 122
Joined: Tue Jul 10, 2012 9:12 amFollowed by: 8 members
Thanked: 2 times
by mehaksal » Sat Aug 25, 2012 2:49 am
If y ≠ 3 and 2x/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 II
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Problem Solving |
User avatar
Senior | Next Rank: 100 Posts
Posts: 94
Joined: Sat Mar 31, 2012 3:39 am
Location: Calcutta
Thanked: 8 times

by cypherskull » Sat Aug 25, 2012 4:59 am
mehaksal wrote:If y ≠ 3 and 2x/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 II
(I) - not true

If x = y, 2x/y = 2 which is false since 2x/y must be greater than 2. Eliminate B and E.

(II) - not true

If y = 1, 2x/y = 2x which is false since 2x/y must be prime. Eliminate C.

(III) Can only be true if y = 2 and x is any other prime number. For all other values of y, III is false. Since question asks "which of the following must be true", this statement is false too since its not always true. Eliminate D.

[spoiler]Ans: A[/spoiler]


Please let me know the OA.
Regards,
Sunit

________________________________

Kill all my demons..And my angels might die too!
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Master | Next Rank: 500 Posts
Posts: 167
Joined: Fri Mar 09, 2012 8:35 pmFollowed by: 3 members
Thanked: 39 times

by adthedaddy » Sat Aug 25, 2012 5:03 am
IMO ans should be "A".

I) If x=y, then 2x/y=2 which does not validate the question which says it should be >2
II) y=1 does not give any numeric soln
III) Take values to negate this.
Take x=5 and y=3 which gives 2x/y a fractional number.

All the 3 options are not possible. Ans is Opt. A
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1