Last visit was: 15 Jul 2025, 00:05 It is currently 15 Jul 2025, 00:05
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: 14 Jul 2025
Posts: 102,576
Own Kudos:
741,466
 [5]
Given Kudos: 98,190
Products:
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 102,576
Kudos: 741,466
 [5]
Kudos
Add Kudos
5
Bookmarks
Bookmark this Post
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 14 Jul 2025
Posts: 102,576
Own Kudos:
Given Kudos: 98,190
Products:
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 102,576
Kudos: 741,466
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
vishwaprakash
User avatar
Queens MBA Thread Master
Joined: 24 Oct 2012
Last visit: 22 Aug 2017
Posts: 141
Own Kudos:
Given Kudos: 45
Concentration: Leadership, General Management
Posts: 141
Kudos: 391
Kudos
Add Kudos
Bookmarks
Bookmark this Post
avatar
tinyinthedesert
Joined: 26 Feb 2018
Last visit: 14 Jun 2021
Posts: 59
Own Kudos:
Location: United Arab Emirates
GMAT 1: 710 Q47 V41
GMAT 2: 770 Q49 V47
Products:
GMAT 2: 770 Q49 V47
Posts: 59
Kudos: 64
Kudos
Add Kudos
Bookmarks
Bookmark this Post
I think the answer choices tend too high to make this 700 level question. It is too easy to guess .... we have 300g of 0.8% and 700g - more than double the amount - of 1.8% so we immediately know two things without any calculation

1) new % will be between 0.8 and 1.8
2) new % will be closer to 1.8 than 0.8 as we have more of that solution - more than double in fact (weighted averages)

This means we can immediately bin answers B, C, D and E as they're all too high

I think an actual GMAT question would include some answer options lower than option A. Usually you can't eliminate 4 options so rapidly. GMAT answer selection usually includes some too high, some too low and one or two "trip up" answers
User avatar
PrayasT
Joined: 26 Feb 2018
Last visit: 22 Dec 2020
Posts: 41
Own Kudos:
Given Kudos: 43
Location: India
GMAT 1: 640 Q45 V34
GPA: 3.9
WE:Web Development (Computer Software)
GMAT 1: 640 Q45 V34
Posts: 41
Kudos: 57
Kudos
Add Kudos
Bookmarks
Bookmark this Post
I think this is a high-quality question and I agree with explanation.
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 14 Jul 2025
Posts: 102,576
Own Kudos:
Given Kudos: 98,190
Products:
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 102,576
Kudos: 741,466
Kudos
Add Kudos
Bookmarks
Bookmark this Post
I have edited the question and the solution by adding more details to enhance its clarity. I hope it is now easier to understand.
Moderators:
Math Expert
102576 posts
Founder
41097 posts