Last visit was: 05 Sep 2026, 16:01 It is currently 05 Sep 2026, 16:01
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
Sajjad1994
User avatar
GRE Forum Moderator
Joined: 02 Nov 2016
Last visit: 05 Sep 2026
Posts: 16,387
Own Kudos:
53,638
 [20]
Given Kudos: 6,457
GPA: 3.62
Products:
Posts: 16,387
Kudos: 53,638
 [20]
Kudos
Add Kudos
20
Bookmarks
Bookmark this Post
User avatar
mendax
Joined: 23 Aug 2021
Last visit: 23 May 2024
Posts: 36
Own Kudos:
69
 [2]
Given Kudos: 14
WE:Design (Energy)
Posts: 36
Kudos: 69
 [2]
2
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
Sajjad1994
User avatar
GRE Forum Moderator
Joined: 02 Nov 2016
Last visit: 05 Sep 2026
Posts: 16,387
Own Kudos:
53,638
 [2]
Given Kudos: 6,457
GPA: 3.62
Products:
Posts: 16,387
Kudos: 53,638
 [2]
Kudos
Add Kudos
2
Bookmarks
Bookmark this Post
User avatar
Gemmie
Joined: 19 Dec 2021
Last visit: 27 Apr 2026
Posts: 480
Own Kudos:
Given Kudos: 76
Location: Viet Nam
Concentration: Technology, Economics
GMAT Focus 1: 695 Q87 V84 DI83
GPA: 3.55
GMAT Focus 1: 695 Q87 V84 DI83
Posts: 480
Kudos: 522
Kudos
Add Kudos
Bookmarks
Bookmark this Post
1st 4 weeks: $x/instrument
each week afterwards: $y per week/instrument

Budget: $2000

Maximum number of weeks if renting 10 instruments
1st 4 weeks: $10x
Each week after: $10y

Number of weeks
\(4 + \frac{2000-10x}{10y}\)
\(= 4 + \frac{200 - x}{y}\)
\(=\frac{4y + 200 - x}{y}\)
\(=\frac{200 + 4y - x}{y}\)


Maximum number of instruments if renting for 10 weeks => n
1st 4 weeks: $nx
Remaining 6 weeks: $6ny

=> n * x + 6 * n * y = 2000
=> \(n = \frac{2000}{x + 6y}\)

­
User avatar
RahulRajBasnet
Joined: 27 Dec 2023
Last visit: 26 Aug 2024
Posts: 13
Own Kudos:
Given Kudos: 10
Posts: 13
Kudos: 7
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Got it wrong by missing the point where $y is for 6 weeks and not 10 weeks because 4 weeks has a fixed cost.
Moderators:
Math Expert
113155 posts
DI Forum Moderator
409 posts