• Award-winning private GMAT tutoring
Register now and save up to \$200

Available with Beat the GMAT members only code

• Magoosh
Study with Magoosh GMAT prep

Available with Beat the GMAT members only code

• 1 Hour Free
BEAT THE GMAT EXCLUSIVE

Available with Beat the GMAT members only code

• Free Trial & Practice Exam
BEAT THE GMAT EXCLUSIVE

Available with Beat the GMAT members only code

• Get 300+ Practice Questions
25 Video lessons and 6 Webinars for FREE

Available with Beat the GMAT members only code

• 5-Day Free Trial
5-day free, full-access trial TTP Quant

Available with Beat the GMAT members only code

• Free Practice Test & Review
How would you score if you took the GMAT

Available with Beat the GMAT members only code

• 5 Day FREE Trial
Study Smarter, Not Harder

Available with Beat the GMAT members only code

• Free Veritas GMAT Class
Experience Lesson 1 Live Free

Available with Beat the GMAT members only code

## OG In college X the number of students enrolled

This topic has 1 expert reply and 0 member replies
AbeNeedsAnswers Master | Next Rank: 500 Posts
Joined
02 Jul 2017
Posted:
191 messages
Followed by:
2 members
1

#### OG In college X the number of students enrolled

Thu Aug 24, 2017 8:27 pm
In College X the number of students enrolled in both a chemistry course and a biology course is how much less than the number of students enrolled in neither?

(1) In College X there are 60 students enrolled in a chemistry course.
(2) In College X there are 85 students enrolled in a biology course.

E

Need free GMAT or MBA advice from an expert? Register for Beat The GMAT now and post your question in these forums!

### GMAT/MBA Expert

Rich.C@EMPOWERgmat.com Elite Legendary Member
Joined
23 Jun 2013
Posted:
8946 messages
Followed by:
468 members
2867
GMAT Score:
800
Tue Sep 05, 2017 10:26 am

We're asked to determine how much LESS the number of students enrolled in BOTH a chemistry course and a biology course is relative to the number of students enrolled in NEITHER. The wording of this prompt implies that we're dealing with a standard Overlapping Sets question, so we can use the Overlapping Sets formula to solve it:

Total = (Group 1) + (Group 2) - Both + Neither

1) In College X there are 60 students enrolled in a chemistry course.

Fact 1 tells us one of the Groups, but nothing else.
Fact 1 is INSUFFICIENT

2) In College X there are 85 students enrolled in a biology course.

Fact 2 tells us one of the Groups, but nothing else.
Fact 2 is INSUFFICIENT

Combined, we can fill in 2 parts of the formula:

Total = (60) + (85) - Both + Neither

There's no way to determine any of the other values though.
Combined, INSUFFICIENT

GMAT assassins aren't born, they're made,
Rich

_________________
Contact Rich at Rich.C@empowergmat.com

### Best Conversation Starters

1 lheiannie07 112 topics
2 swerve 64 topics
3 LUANDATO 64 topics
4 ardz24 61 topics
5 AAPL 57 topics
See More Top Beat The GMAT Members...

### Most Active Experts

1 Scott@TargetTestPrep

Target Test Prep

227 posts
2 Brent@GMATPrepNow

GMAT Prep Now Teacher

176 posts
3 Jeff@TargetTestPrep

Target Test Prep

168 posts
4 Rich.C@EMPOWERgma...

EMPOWERgmat

138 posts
5 GMATGuruNY

The Princeton Review Teacher

129 posts
See More Top Beat The GMAT Experts