Live GMAT classes with Target Test Prep start Nov 21 and Nov 22. First class free.

See classes
Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

Newsweek Readers’ Choice Awards 2026 winner: Target Test Prep, #1 Test Prep

Target Test Prep was voted #1 Best Test Prep in the 2026 Newsweek Readers’ Choice™ Awards.

★★★★★5.0563 reviews
GMATLiveTeachStarts Nov 22
Josh Braslow, Target Test Prep GMAT expert
LIVE ONLINE CLASSES

Get Ready for GMAT Test Day Faster with Live Online Classes

with Josh Braslow, 20+ years in test prep

Nov 22 · Josh Braslow
Sun · 9:30 AM to 12:30 PM ET
Included
40 hours of live online classes + 6 months of TTP OnDemand
  • Attend the first class for free
  • Every class is recorded, so you never fall behind
View classes & enroll
Limited seats availableTarget Test Prep
EALiveTeachOnDemandStart anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

EXECUTIVE ASSESSMENT

with

165+ EA score guarantee
$05-day trial no automatic billing
Schedule
Included
40 hours of live online classes plus six months of access to the complete TTP EA OnDemand course.
  • 165+ EA Score Guarantee
  • 4,100+ Quant, Verbal, and Integrated Reasoning practice questions
  • 400+ hours of in-depth video lessons
  • 3,000+ step-by-step video solutions
View EA class & enroll Start free 5-day trial
Limited cohort · enrollment openTrial includes full course accessTarget Test Prep
GMATOnDemandStart anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

715+ score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions
Start free 5-day trial
Read 563 reviewsTarget Test Prep

\[ \frac{19^2+19}{20}= \]

Expert replies
Post new topic Post Reply
Subscribe topic
Previous Topic Next Topic
Legendary Member
Posts: 2276
Joined: Sat Oct 14, 2017 6:10 amFollowed by: 3 members
by VJesus12 » Fri May 11, 2018 7:24 am
Timer
00:00
Your answer
Difficulty–

right wrong

Pick an answer to see how members did

$$\frac{19^2+19}{20}=$$ A. 19/10
B. 57/20
C. 19
D. 38
E. 361

The OA is the option C.

What is the fastest way to solve this PD question? May someone clarifies this to me? Thanks.
Top
Join the discussion
Source: — Problem Solving |

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 16206
Joined: Mon Dec 08, 2008 6:26 pmFollowed by: 1268 members
Location: Vancouver, BC
Thanked: 5254 times
GMAT Score:770

192+1920=

by Brent@GMATPrepNow » Fri May 11, 2018 7:52 am
VJesus12 wrote:$$\frac{19^2+19}{20}=$$ A. 19/10
B. 57/20
C. 19
D. 38
E. 361
Notice that we can factor 19 from the numerator.

(19² + 19)/20 = (19)(19 + 1)/20
= (19)(20)/20
= 19

Answer: C

Cheers,
Brent
Brent Hanneson - Creator of GMATPrepNow.com
Image
Top
Join the discussion
Legendary Member
Posts: 2898
Joined: Thu Sep 07, 2017 2:49 pmFollowed by: 5 members
Thanked: 6 times

by Vincen » Fri May 11, 2018 8:07 am
VJesus12 wrote:$$\frac{19^2+19}{20}=$$ A. 19/10
B. 57/20
C. 19
D. 38
E. 361

The OA is the option C.

What is the fastest way to solve this PD question? May someone clarifies this to me? Thanks.
Hello Vjesus12.

Here the best way is taking 19 as a common factor as follows: $$\frac{19^2+19}{20}=\frac{19\left(19+1\right)}{20}=\frac{19\cdot20}{20}=19.$$ This way, we get the answer straightforward. Hence, the correct answer is the option C.

I hope this explanation may help you.
Top
Join the discussion

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 8246
Joined: Sat Apr 25, 2015 10:56 amFollowed by: 29 members
Location: Los Angeles, CA
Thanked: 43 times

by Scott@TargetTestPrep » Tue May 21, 2019 6:29 pm
VJesus12 wrote:$$\frac{19^2+19}{20}=$$ A. 19/10
B. 57/20
C. 19
D. 38
E. 361
The two terms in the numerator have a common factor of 19. Factoring it and simplifying, we have:

19(19 + 1)/20 = 19(20)/20 = 19

Answer: C

Scott Woodbury-Stewart
Founder and CEO
[email protected]

Image

See why Target Test Prep is rated 5 out of 5 stars on BEAT the GMAT. Read our reviews

ImageImage
Top
Join the discussion