Last visit was: 03 Jun 2026, 17:39 It is currently 03 Jun 2026, 17:39
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: 03 Jun 2026
Posts: 111,085
Own Kudos:
Given Kudos: 106,633
Products:
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 111,085
Kudos: 818,670
 [22]
3
Kudos
Add Kudos
19
Bookmarks
Bookmark this Post
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 03 Jun 2026
Posts: 111,085
Own Kudos:
818,670
 [4]
Given Kudos: 106,633
Products:
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 111,085
Kudos: 818,670
 [4]
1
Kudos
Add Kudos
3
Bookmarks
Bookmark this Post
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 03 Jun 2026
Posts: 111,085
Own Kudos:
Given Kudos: 106,633
Products:
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 111,085
Kudos: 818,670
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
CoffeeNCream
Joined: 10 Nov 2022
Last visit: 13 Sep 2024
Posts: 9
Own Kudos:
Given Kudos: 11
Location: Australia
Posts: 9
Kudos: 2
Kudos
Add Kudos
Bookmarks
Bookmark this Post
­Hi Bunuel,

Thank you for the question.

I looked up an algebraic approach for this question, and it made sense.

But I feel unsatisfied. I understand your solution, but I was wondering is there another way to word the solution, or another approach you could also take? I'm having difficulty grasping it. Any similar questions like this so I can practice using the methodology of your solution?

Thank you.
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 03 Jun 2026
Posts: 111,085
Own Kudos:
Given Kudos: 106,633
Products:
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 111,085
Kudos: 818,670
Kudos
Add Kudos
Bookmarks
Bookmark this Post
 
CoffeeNCream
­Hi Bunuel,

Thank you for the question.

I looked up an algebraic approach for this question, and it made sense.

But I feel unsatisfied. I understand your solution, but I was wondering is there another way to word the solution, or another approach you could also take? I'm having difficulty grasping it. Any similar questions like this so I can practice using the methodology of your solution?

Thank you.
­
You can check alternative explaantion here.
User avatar
MS61
Joined: 05 Jun 2022
Last visit: 03 Jan 2026
Posts: 98
Own Kudos:
48
 [1]
Given Kudos: 124
Location: India
GMAT Focus 1: 605 Q84 V76 DI80
GMAT 1: 540 Q45 V27
GMAT Focus 1: 605 Q84 V76 DI80
GMAT 1: 540 Q45 V27
Posts: 98
Kudos: 48
 [1]
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
 
CoffeeNCream
­Hi Bunuel,

Thank you for the question.

I looked up an algebraic approach for this question, and it made sense.

But I feel unsatisfied. I understand your solution, but I was wondering is there another way to word the solution, or another approach you could also take? I'm having difficulty grasping it. Any similar questions like this so I can practice using the methodology of your solution?

Thank you.
­
A = 3000
B = 1000

Its given for A - 3000  * cost/piece= 0.6* Revenue
Hence Revenue = 5000

For B - 1000 * cost/Piece = 0.4* Revenue
Cost/Piece = 2

So I can say 3000*1 ( qty * Cost for A ) + 1000*2 ( Qty * Cost for B )= 5000 ( Revenue )
If I reduce 1000 from A then I get Qty = 2000
Value = 2000*1 = 2000

Whereas for B Qty = 1000
Value = 1000* 2 = 2000

Total revenue = 2000 + 2000 = 4000
Hence A is contributing 50%
 ­
User avatar
Pratham_Patil24
Joined: 15 Jun 2024
Last visit: 24 Mar 2026
Posts: 30
Own Kudos:
Given Kudos: 504
GMAT Focus 1: 515 Q78 V76 DI72
GMAT Focus 2: 605 Q79 V82 DI79
Products:
GMAT Focus 2: 605 Q79 V82 DI79
Posts: 30
Kudos: 4
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Hi Bunuel,

Please tell me if my below approach is correct?

I used numbers here.

With given quantities, I assumed,

Total Revenue = $10,000
Price per unit of Model A = $2
Price per unit of Model B = $4

Which Makes the revnue contribution of each as given, i.e. Model A= $6000 (60%) & Model B= $4000 (40%)

Now, if we reduce the qty of A by 1000, Revenue of Model A becomes $4000 and Total Revenue becomes $8000, hence percentage of monthly sales of Model A is 50%.


Bunuel
Official Solution:

In November, a company sold 3,000 units of Model A and 1,000 units of Model B. Model A contributed 60% to the company's total monthly sales revenue in dollars, while Model B contributed the remaining 40%. If the company had sold 1,000 fewer units of Model A than they actually did, what percentage of the total monthly sales revenue in dollars would have been attributed to Model A?

A. 48
B. 50
C. 52
D. 54
E. 55


Suppose the total sales revenue in November was $100. In this case, Model A contributed $60 and Model B contributed $40.

If the company had sold 1,000 fewer units of Model A than they actually did, it would have sold only 2,000 units of Model A. This is 2/3 of the units of Model A that were actually sold. Consequently, Model A would have contributed 2/3 of its original contribution, amounting to $40. In this scenario, the total revenue would have been $40 + $40 = $80. Therefore, 50% of the total monthly sales revenue in dollars would have been attributed to Model A.


Answer: B
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 03 Jun 2026
Posts: 111,085
Own Kudos:
Given Kudos: 106,633
Products:
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 111,085
Kudos: 818,670
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Pratham_Patil24
Hi Bunuel,

Please tell me if my below approach is correct?

I used numbers here.

With given quantities, I assumed,

Total Revenue = $10,000
Price per unit of Model A = $2
Price per unit of Model B = $4

Which Makes the revnue contribution of each as given, i.e. Model A= $6000 (60%) & Model B= $4000 (40%)

Now, if we reduce the qty of A by 1000, Revenue of Model A becomes $4000 and Total Revenue becomes $8000, hence percentage of monthly sales of Model A is 50%.



Yes, your approach is correct.
Moderators:
Math Expert
111085 posts
Founder
43372 posts