Last visit was: 25 Apr 2026, 02:44 It is currently 25 Apr 2026, 02:44
Home
Messages
Tests
Schools
Events
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.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel
Back to Forum
Create Topic
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 25 Apr 2026
Posts: 109,822
Own Kudos:
811,132
 [1]
Given Kudos: 105,878
Products:
GMAT Club Tests Forum Quiz
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 109,822
Kudos: 811,132
 [1]
A certain jewelry store sells gold necklaces in 18-inch and 28-inch le 29 Sep 2015, 21:34
Kudos
Add Kudos
1
Bookmarks
Bookmark this Post
00:00
Start Timer
Pause Timer
Resume Timer
Show Answer
Hide
Show
History
C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!

Difficulty:

5% (low)

Question Stats:

92% (01:13) correct 8% (01:22) wrong based on 66 sessions

History

Date
Time
Result
Not Attempted Yet
A certain jewelry store sells gold necklaces in 18-inch and 28-inch lengths, and all necklaces of the same length sell for the same price per necklace regardless of the number of necklaces purchased. What is the price of a 28-inch necklace at this jewelry store?

(1) The total price of an 18-inch and a 28-inch gold necklace is $68.
(2) The total price of two 18-inch necklaces and one 28-inch necklace is $96.

Kudos for a correct solution.
ShowHide Answer
Official Answer
C
User avatar
BrainLab
User avatar
Current Student
Joined: 10 Mar 2013
Last visit: 26 Jan 2025
Posts: 343
Own Kudos:
3,216
 [1]
Given Kudos: 200
Location: Germany
Concentration: Finance, Entrepreneurship
Schools: WHU MBA"20 (A$)
GMAT 1: 580 Q46 V24
GPA: 3.7
WE:Marketing (Telecommunications)
Schools: WHU MBA"20 (A$)
GMAT 1: 580 Q46 V24
Posts: 343
Kudos: 3,216
 [1]
A certain jewelry store sells gold necklaces in 18-inch and 28-inch le 30 Sep 2015, 11:57
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
A certain jewelry store sells gold necklaces in 18-inch and 28-inch lengths, and all necklaces of the same length sell for the same price per necklace regardless of the number of necklaces purchased. What is the price of a 28-inch necklace at this jewelry store?

(1) The total price of an 18-inch and a 28-inch gold necklace is $68.
(2) The total price of two 18-inch necklaces and one 28-inch necklace is $96.

Kudos for a correct solution.
Show more

St1: L+S = 68 NOT SUFFICIENT
St2: 2S + L = 96 NOT SUFFICIENT
St1 + St2: S=68-L -> 136-2L+L=96 -> L=40 Answer (C)
avatar
Hemavakade
avatar
Joined: 19 Dec 2014
Last visit: 19 Nov 2016
Posts: 33
Own Kudos:
63
 [1]
Given Kudos: 25
Posts: 33
Kudos: 63
 [1]
A certain jewelry store sells gold necklaces in 18-inch and 28-inch le 30 Sep 2015, 12:40
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Let the price of 18-inch necklace be X
Let the price of 28-inch necklace be Y

The question is asking for value of Y

Statement 1

1X + 1Y = 68

Insufficient

Statement 2

2X + 1Y = 96
Y = 96 - 2X
Insufficient

Statement 1 + 2
We can find Y.. Sufficient

Answer = C
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 25 Apr 2026
Posts: 109,822
Own Kudos:
811,132
Given Kudos: 105,878
Products:
GMAT Club Tests Forum Quiz
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 109,822
Kudos: 811,132
A certain jewelry store sells gold necklaces in 18-inch and 28-inch le 05 Oct 2015, 05:48
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
A certain jewelry store sells gold necklaces in 18-inch and 28-inch lengths, and all necklaces of the same length sell for the same price per necklace regardless of the number of necklaces purchased. What is the price of a 28-inch necklace at this jewelry store?

(1) The total price of an 18-inch and a 28-inch gold necklace is $68.
(2) The total price of two 18-inch necklaces and one 28-inch necklace is $96.

Kudos for a correct solution.
Show more

VERITAS PREP OFFICIAL SOLUTION:

Question Type: What Is the Value? This question asks you for a specific value for the price of the longer (28 inch) necklace.

Given information from the question stem: Necklaces come in two lengths and there is no “volume discount” since all necklaces of the same length sell for the same price regardless of number purchased.

Statement 1: Translated this becomes “x + y = $68” where x is 18 inch and y is 28 inch. This is two variables and just one equation. There is no way to distribute the $68 total. This is not sufficient. Eliminate choices A and D.

Statement 2: Translated this becomes “2x + y = $96.” This is just like Statement 1 in that you have two variables and only one equation. This, too, is not sufficient. Eliminate choice B.

Together: Taken together the statements give you two linear equations with the same two variables. As long as these equations are distinct this will be sufficient.
To ensure you come to an answer, you can use the Elimination Method for multiple variables, subtracting Statement 1’s equations from Statement 2’s:
2x + y = 96
-x – y = -68
x = 28, and you can plug that in to the first equation to solve for y. If 28 + y = 68, then y = 40. These statements together allow you to solve for y, the price in question, so the correct answer is C.
User avatar
Krabhay
User avatar
Joined: 18 Dec 2018
Last visit: 19 Dec 2018
Posts: 34
Own Kudos:
10
Posts: 34
Kudos: 10
A certain jewelry store sells gold necklaces in 18-inch and 28-inch le 18 Dec 2018, 23:35
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Let the price of 18 inch necklace be ‘a’ and the price of 28 inch necklace be ‘b’.
Statement 1. a + b = 68. Since we don’t know any one of a and b, we cannot calculate the value of other. Hence, Insufficient.
Statement 2. 2a + b = 96. Since, we don’t know either of a and b, we cannot calculate the value of other. Hence, Insufficient.
Statement 1 & 2 together. a + b = 68 & 2a + b = 96
Solving above equations, we get,
a = 28 and b = 40. Hence , sufficient.
User avatar
bumpbot
User avatar
Non-Human User
Joined: 09 Sep 2013
Last visit: 04 Jan 2021
Posts: 38,978
Own Kudos:
1,117
Posts: 38,978
Kudos: 1,117
A certain jewelry store sells gold necklaces in 18-inch and 28-inch le 13 Nov 2023, 05:46
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:
Bunuel
Math Expert
109822 posts
kingbucky
498 posts
Gmat860sanskar
212 posts