GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 17 Aug 2019, 14:24

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

M70-39

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Find Similar Topics 
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 57025
M70-39  [#permalink]

Show Tags

New post 04 Sep 2018, 02:44
00:00
A
B
C
D
E

Difficulty:

  55% (hard)

Question Stats:

55% (02:12) correct 45% (01:32) wrong based on 11 sessions

HideShow timer Statistics

A praline box contained 10 milk chocolate pralines, 6 bitter chocolate pralines and 4 white chocolate pralines. To this amount were added x pralines, out of which \(y\%\) were milk chocolate. Of the new amount of pralines, are more than half milk chocolate?



(1) \(x=8\)

(2) \(y=60\)

_________________
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 57025
Re M70-39  [#permalink]

Show Tags

New post 04 Sep 2018, 02:44
Official Solution:


We’ll go for LOGICAL because that is our first choice in Data Sufficiency.

The question asks us about the new percentage of milk chocolate pralines, so we’ll start by finding the original percentage: \(\frac{10}{10 + 6 + 4}=\frac{10}{20}=\frac{1}{2}= 50\%\). So, we are being asked whether the new pralines increased the milk chocolate percentage. (1) Knowing the number of pralines added without knowing their composition doesn’t help us determine the new percentage. (A) and (D) are eliminated. (2) If the percentage of milk chocolate in the added pralines is greater than the percentage in the original amount, the new amount must have an increased percentage. (C) and (E) are eliminated.


Answer: B
_________________
Intern
Intern
avatar
B
Joined: 18 Jul 2019
Posts: 3
Re: M70-39  [#permalink]

Show Tags

New post 07 Aug 2019, 23:33
The answer will change if you put x as 5 or x as 10. so, 2 is not sufficient for the conclusion
GMAT Club Bot
Re: M70-39   [#permalink] 07 Aug 2019, 23:33
Display posts from previous: Sort by

M70-39

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  

Moderators: chetan2u, Bunuel






Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne