Last visit was: 19 Jul 2025, 20:43 It is currently 19 Jul 2025, 20:43
Home
GMAT
Messages
Tests
Schools
Events
Rewards
Chat
My Profile
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: 19 Jul 2025
Posts: 102,627
Own Kudos:
742,809
 [12]
Given Kudos: 98,235
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: 102,627
Kudos: 742,809
 [12]
One pound of peanuts is added to a bin containing only cashews, and 13 Sep 2023, 05:42
1
Kudos
Add Kudos
10
Bookmarks
Bookmark this Post
00:00
Start Timer
Pause Timer
Resume Timer
Show Answer
Hide
Show
History
D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!

Difficulty:

45% (medium)

Question Stats:

71% (01:59) correct 29% (02:13) wrong based on 182 sessions

History

Date
Time
Result
Not Attempted Yet
One pound of peanuts is added to a bin containing only cashews, and the resulting mix is 20 percent peanuts by weight. How many more pounds of peanuts must be added to the bin to create a mix that is 60 percent peanuts, by weight?

A. 2
B. 3
C. 4.75
D. 5
E. 5.25
ShowHide Answer
Official Answer
D
User avatar
IshanSaini
User avatar
Joined: 07 Apr 2020
Last visit: 10 Jul 2025
Posts: 70
Own Kudos:
118
 [1]
Given Kudos: 121
Posts: 70
Kudos: 118
 [1]
One pound of peanuts is added to a bin containing only cashews, and 13 Sep 2023, 09:35
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
One pound of peanuts is added to a bin containing only cashews, and the resulting mix is 20 percent peanuts by weight. How many more pounds of peanuts must be added to the bin to create a mix that is 60 percent peanuts, by weight?

A. 2
B. 3
C. 4.75
D. 5
E. 5.25

Good Allegation Question !! :

One pound of peanut < Keep it in mind for now>

So we are mixing peanuts in cashews to create a 20% peanut mix.
I.E.
Peanuts to be mixed are 100% peanuts.
Cashews in the jar are 0% peanuts :P
and the mix is 20% peanuts

This gives 100 - 20 = 80 for the cashews
Also 20 - 0 = 20 for the added peanuts

Simplify this ratio and we get
peanuts : Cashew = 1 : 4
This means that we have 1 pound peanut in 5 pound mix
now to further solve this question we :
\(\frac{1+x }{ 5 + x }= 3/5\)

Simplifies 60% and x refers to the amount of extra peanuts to be added:
5 + 5x = 15 + 3x
2x = 10
x = 5

Hence IMO 5 D)
User avatar
youcouldsailaway
User avatar
Joined: 08 Nov 2022
Last visit: 07 Feb 2024
Posts: 64
Own Kudos:
47
 [1]
Given Kudos: 57
Location: India
Concentration: Finance, Entrepreneurship
Schools: Wharton '26 Cornell '26 Ross '26 Fuqua '27 HBS '26 Stern '26 Marshall '26 Tuck '26
GMAT 1: 590 Q37 V34
GMAT 2: 660 Q40 V40
GPA: 3
Schools: Wharton '26 Cornell '26 Ross '26 Fuqua '27 HBS '26 Stern '26 Marshall '26 Tuck '26
GMAT 2: 660 Q40 V40
Posts: 64
Kudos: 47
 [1]
One pound of peanuts is added to a bin containing only cashews, and 01 Oct 2023, 02:36
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
In this question, we will have to use Allegation twice.

First time - 100% of peanuts added to a bin containing only cashews (0% peanuts)

Second time - 100% of peanuts added to a bin containing 20% of peanuts.
Attachments

image (3).png
image (3).png [ 103.59 KiB | Viewed 2078 times ]

User avatar
Ilanchezhiyan
User avatar
Joined: 09 Feb 2024
Last visit: 18 Jul 2025
Posts: 91
Own Kudos:
13
Given Kudos: 119
Posts: 91
Kudos: 13
One pound of peanuts is added to a bin containing only cashews, and 27 Jun 2025, 03:24
Kudos
Add Kudos
Bookmarks
Bookmark this Post
If 1 Kg of Peanuts is 20 % of total weight, then the total weight T=5 kg;
Total weight = 4 kg Cashews + 1kg peanuts;
The weight of cashews will remain the same after x kg of peanuts is added to the mix;

So, the final mixture will have 60% of Peanuts by weight and 40 % of cashews
40% Total weight = 4kg(as the weight of cashews is the same)
100 percent of Total Weight is 10kg
So, 6kg of peanuts is present in the final mix. Of which 5kg is added additionally.
Option D is the answer
User avatar
ODST117
User avatar
Joined: 15 Aug 2024
Last visit: 19 Jul 2025
Posts: 56
Own Kudos:
47
Given Kudos: 120
Posts: 56
Kudos: 47
One pound of peanuts is added to a bin containing only cashews, and 27 Jun 2025, 05:53
Kudos
Add Kudos
Bookmarks
Bookmark this Post
\(1\) pound of peanuts are added to cashews to create a mix that is \(20\)% peanuts by weight.
If the weight of the mixture is \(x\) pounds, then \(20\)% of the weight of the mixture (\(x\)) should be equal to \(1\) pound.
\(\frac{20}{100}*x=1\)
The weight of the mixture, \(x\), is \(5\) pounds.

Lets say we need to add \(y\) pounds of peanuts to make the mixture \(60\)% peanuts by weight, then \(60\)% of the weight of the new mixture \((5+y)\), should be equal to the weight of the peanuts in the mixture \((1+y)\).
\(\frac{60}{100}*(5+y) = 1+y\)

Solving for \(y\) gets us \(y=5\).
User avatar
shaliny
User avatar
Joined: 30 Oct 2023
Last visit: 19 Jul 2025
Posts: 58
Own Kudos:
19
Given Kudos: 376
Posts: 58
Kudos: 19
One pound of peanuts is added to a bin containing only cashews, and 30 Jun 2025, 04:43
Kudos
Add Kudos
Bookmarks
Bookmark this Post
let cashew= c pound and 1 pound of peanut is added to this c pound of cashews
we get mix with ratio of cashew and peanut as 4:1 respectively.

further we need a 60 percent peanut mixture where ratio of cashew and peanut would be 2:3 respectively.
after comparing both ratio we observe that amount of cashew should not be change because only peanuts are added. So to make cashew amount same we will multiply the second ratio by 2 and make it 4:6 . now the cashew amount is same and now we can see the difference in the amount of peanuts by comparing ratios 4:1 and 4:6. Here we can see peanuts increased from 1 to 6 means in ratio peanut increas3ed by 5.
as we know in ratio 4:1, 1 is equivalent to 1 pound (given) of peanut so 5 would be equivalent to 5 pounds
so option D is correct.
Bunuel
One pound of peanuts is added to a bin containing only cashews, and the resulting mix is 20 percent peanuts by weight. How many more pounds of peanuts must be added to the bin to create a mix that is 60 percent peanuts, by weight?

A. 2
B. 3
C. 4.75
D. 5
E. 5.25
Moderators:
Bunuel
Math Expert
102627 posts
Krunaal
PS Forum Moderator
698 posts