Last visit was: 24 Apr 2026, 13:52 It is currently 24 Apr 2026, 13:52
Close
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Close
Request Expert Reply
Confirm Cancel
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 24 Apr 2026
Posts: 109,818
Own Kudos:
811,065
 [4]
Given Kudos: 105,873
Products:
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 109,818
Kudos: 811,065
 [4]
1
Kudos
Add Kudos
3
Bookmarks
Bookmark this Post
avatar
TudorM
Joined: 24 Jan 2014
Last visit: 22 Sep 2015
Posts: 29
Own Kudos:
57
 [1]
Given Kudos: 73
Location: France
Concentration: General Management, International Business
GMAT 1: 700 Q47 V39
GPA: 3
WE:General Management (Advertising and PR)
GMAT 1: 700 Q47 V39
Posts: 29
Kudos: 57
 [1]
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
avatar
LaxAvenger
Joined: 18 Aug 2014
Last visit: 10 Nov 2017
Posts: 91
Own Kudos:
Given Kudos: 36
Location: Hong Kong
Schools: Mannheim
Schools: Mannheim
Posts: 91
Kudos: 159
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 24 Apr 2026
Posts: 109,818
Own Kudos:
Given Kudos: 105,873
Products:
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 109,818
Kudos: 811,065
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
At a certain carnival booth, contestants spin a number-wheel containing positive, two-digit numbers. If they land on a prime number, they win that number of prizes. If they land on a non-prime number, they win 7 more prizes than the number. If a contestant won 31 prizes, which of the following could have been the number the contestant landed on?

I. 31
II. 24
III. 38

A. I only
B. II only
C. III only
D. I and II only
E. I, II and III


Kudos for a correct solution.

The OA will be revealed on Sunday

VERITAS PREP OFFICIAL SOLUTION:

The correct response is (D).

If the contestant won 31 prizes, and 31 is prime, then it’s possible he/she landed on 31. However, 7 less than 31 is 24, which is non-prime. It’s also possible the contestant landed on 24, a non-prime number, and so won 24 + 7 = 31 prizes.

It it not possible for the contestant to have landed on 38 and walked away with 31 prizes, since landing on 38 (a non-prime) would mean the contestant won 45 prizes.
avatar
kaulatul
Joined: 31 May 2012
Last visit: 01 Mar 2016
Posts: 23
Given Kudos: 12
Posts: 23
Kudos: 0
Kudos
Add Kudos
Bookmarks
Bookmark this Post
I got D, but is the question of 600+ level
User avatar
JeffTargetTestPrep
User avatar
Target Test Prep Representative
Joined: 04 Mar 2011
Last visit: 05 Jan 2024
Posts: 2,974
Own Kudos:
Given Kudos: 1,646
Status:Head GMAT Instructor
Affiliations: Target Test Prep
Expert
Expert reply
Posts: 2,974
Kudos: 8,711
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
At a certain carnival booth, contestants spin a number-wheel containing positive, two-digit numbers. If they land on a prime number, they win that number of prizes. If they land on a non-prime number, they win 7 more prizes than the number. If a contestant won 31 prizes, which of the following could have been the number the contestant landed on?

I. 31
II. 24
III. 38

A. I only
B. II only
C. III only
D. I and II only
E. I, II and III

Since 31 is prime, they could have landed on 31 to win 31 prizes. Since 24 is not prime and 24 + 7 = 31, they could have landed on 24 to win 31 prizes also. If they had landed on 38, then, since 38 is not prime, they would’ve won 38 + 7 = 45 numbers; thus, they couldn’t have landed on 38.

Answer: D
User avatar
bumpbot
User avatar
Non-Human User
Joined: 09 Sep 2013
Last visit: 04 Jan 2021
Posts: 38,974
Own Kudos:
Posts: 38,974
Kudos: 1,117
Kudos
Add Kudos
Bookmarks
Bookmark this Post
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.
Moderators:
Math Expert
109818 posts
Tuck School Moderator
853 posts