GMAT Changed on April 16th - Read about the latest changes here

It is currently 27 May 2018, 18:10

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

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

Is 4x less than y? (1) 4x + y > 7 (2) y > 15

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

Hide Tags

Expert Post
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 45498
Is 4x less than y? (1) 4x + y > 7 (2) y > 15 [#permalink]

Show Tags

New post 30 Apr 2018, 08:06
00:00
A
B
C
D
E

Difficulty:

  45% (medium)

Question Stats:

65% (00:41) correct 35% (00:59) wrong based on 20 sessions

HideShow timer Statistics

Expert Post
e-GMAT Representative
User avatar
G
Joined: 04 Jan 2015
Posts: 1257
Re: Is 4x less than y? (1) 4x + y > 7 (2) y > 15 [#permalink]

Show Tags

New post 30 Apr 2018, 10:13

Solution



To find:
• Whether the value of 4x is less than y

Analysing Statement 1
• As per the information given in Statement 1, 4x + y > 7
    o From this, 4x can be greater or less than y.
• For example, if y = 20 and 4x = 24, then 4x > y. Alternatively, if y = 16 and 4x = 12, 4x < y. In both the cases 4x + y > 7.
• Hence, statement 1 is not sufficient to answer

Analysing Statement 2
• As per the information given in Statement 2, y > 15
    o But this statement does not provide any information about x (or 4x)
• Hence, statement 2 is sufficient to answer the question

Combining Both Statements
• If we combine both the statements, we can say 4x + y > 7 and y > 15
    o We can take the same set of values that we took in statement 1 and say both possibilities exist( 4x > y or 4x < y).
• Thererfore, we cannot answer even after combining the statements.

Hence, the correct answer is option E.

Answer: E
_________________












| '4 out of Top 5' Instructors on gmatclub | 70 point improvement guarantee | www.e-gmat.com

Re: Is 4x less than y? (1) 4x + y > 7 (2) y > 15   [#permalink] 30 Apr 2018, 10:13
Display posts from previous: Sort by

Is 4x less than y? (1) 4x + y > 7 (2) y > 15

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


GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

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

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.