BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem
TTP OnDemand GMAT Video Course
Featured Course

Target Test Prep GMAT OnDemand

Scott Woodbury-Stewart’s private virtual classroom — 400 hours of master-class video lessons for the GMAT Focus Edition.

  • 715+ score guarantee — highest in the industry (99th percentile)
  • 52 chapters · 1,500+ lessons · 4,000+ practice questions
  • 400 hours of video · 1,500+ instructor-led HD smartboard lessons
  • 300,000+ students accepted to Harvard, Stanford, Wharton, Booth & Sloan & more
  • 24/7 live support + weekly Zoom office hours with GMAT instructors
  • TTP AI Assist — 24/7 AI-powered virtual tutor for instant help
  • 1,200+ flashcards + AI-powered study assistant & daily calendar
  • OnDemand, LiveTeach & GMAT Bootcamp formats available
  • Also: GRE, SAT Math & Executive Assessment courses
  • MBA Admissions Consulting now available
  • 🏆 2025 EdTech Breakthrough Award: Test Prep Solution Provider of the Year
  • 200,000+ students served
  • 5-day free trial — $0 to start, no auto-billing, cancel anytime
★★★★★ 5.0 (559 reviews)
130-pt guarantee
$0 to start then $127/mo
Start Free 5-Day Trial Read 559 Reviews →

On the number line above, p, q, r, s, and t are five

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Moderator
Posts: 7187
Joined: Thu Sep 07, 2017 4:43 pmFollowed by: 23 members
by BTGmoderatorDC » Tue Apr 02, 2019 10:35 pm

Timer

00:00

Answers

A

B

C

D

E

Stats

Difficulty—

Image

On the number line above, p, q, r, s, and t are five consecutive even integers in increasing order. What is the average (arithmetic mean) of these five integers?

(1) q + s =24
(2) The average (arithmetic mean) of q and r is 11.

OA D

Source: Official Guide
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Data Sufficiency |

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 3008
Joined: Mon Aug 22, 2016 6:19 amFollowed by: 34 members
Location: Grand Central / New York
Thanked: 470 times

by Jay@ManhattanReview » Thu Apr 04, 2019 12:12 am
BTGmoderatorDC wrote:Image

On the number line above, p, q, r, s, and t are five consecutive even integers in increasing order. What is the average (arithmetic mean) of these five integers?

(1) q + s =24
(2) The average (arithmetic mean) of q and r is 11.

OA D

Source: Official Guide
Since p, q, r, s, and t are five consecutive even integers, the average (arithmetic mean) of these five integers would be r.

we have

q = p + 2;
r = p + 4;
s = p + 6;
t = p + 8

So, we have to get the value of p +4.

Let's take each statement one by one.

(1) q + s =24

p + 2 + p + 6 = 24 => 2p + 8 = 24 => p = 8 => r = p + 4 = 8 + 4 = 12. Sufficient.

(2) The average (arithmetic mean) of q and r is 11.

=> [(p + 2) + (p + 4)]/2 = 11 => 2p + 6 = 22 => p = 8 => r = p + 4 = 8 + 4 = 12. Sufficient.

The correct answer: C

Hope this helps!

-Jay
_________________
Manhattan Review LSAT Prep

Locations: Manhattan GMAT | Free GRE Practice Questions | LSAT Prep Courses London | SAT Prep Courses Dubai | and many more...

Schedule your free consultation with an experienced GMAT Prep Advisor! Click here.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Legendary Member
Posts: 2539
Joined: Sun Oct 29, 2017 2:04 pmFollowed by: 6 members

by swerve » Thu Apr 04, 2019 10:26 am
Statement 1.
The number of terms is \(5\) so the center term i.e \(r\) will be the average as the series is an arithmetic progression, so it can be found by \(\frac{q +s}{2} = 12\).

Statement 2.
Given \(\frac{q + r}{2} = 11\).

Also \(q = r-2\) (as all are even consecutive integers in a series). So again the average can be found out.

Therefore, the correct answer is __D__
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1