Events & Promotions
|
|
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
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Sep 0609:30 AM EDT
-12:30 PM EST
Top scores are possible when you enroll in a powerful EA course, taught live online + 6 months access to TTP OnDemand video courses included! Perfect class schedule and easy course access for working professionals. Class starts Sundays Sept. 6, 2026.
Sep 0201:00 PM EDT
-11:59 PM EDT
Take 30% off all study plans with code COURSEWORK - Expires on Monday 9/7
Sep 0401:30 AM EDT
-02:30 AM EDT
This Labor Day, turn your hard work into real score gains. From 615→715 in 15 days to 705 in 30 days, our students prove what's possible with personalized, expert guidance. Save up to 25% on 1-on-1 tutoring.
Sep 0410:00 AM EDT
-11:59 PM EDT
We’ve worked incredibly hard to build TTP into the best test prep experience possible, and it would mean a lot to us to win Newsweek’s 2026 Readers’ Choice Award for Best Test Prep. If TTP has helped you, we’d be incredibly grateful for your vote.
Sep 0712:01 AM PDT
-11:59 PM PDT
On the 7th, GMAT Club Tests will be Free! Including all the Quizzes, Questions, and Tests. 12 AM - 11:59 PM PDT
Sep 0712:30 AM EDT
-01:30 AM EDT
Tejas studied hard but kept repeating the same mistakes. After 3 attempts at 645, a focused 4-week strategy helped him identify and fix what was holding him back—leading to a 695 with just 12–15 hours of study per week.- Sep 07
10:00 AM PDT
-11:00 AM PDT
A complete walkthrough of GMAT Club’s free 12-week GMAT study plan: what you study each week, how progress and goals are tracked, how the error log works, and how your practice unlocks paid tools at no cost. - Sep 09
07:00 AM PDT
-10:00 AM PDT
Meet AdComs and explore top Master’s programs - MiM, MiF, MSc, MSBA and more. - Application Fee Waivers - Free 1-Week of GMAT Club Tests: - Master's Application Toolkit - Grand Prize Giveaway - Sep 09
10:00 AM PDT
-11:00 AM PDT
Three MBA applications. Three rejections. No interview invites. A year later, Aman was admitted to Cambridge Judge, SMU, and IMD. In this episode of MBA Admit Stories, Aman shares how he rebuilt his MBA application... 
Sep 1008:00 PM PDT
-09:00 PM PDT
Free- full-length test + 15 concept videos + 150+ short videos + study plan!
Sep 1507:00 PM EDT
-09:00 PM EST
Elite scores are possible when you enroll in a powerful GMAT course, taught live online + 6 months access to TTP OnDemand video courses included! Class starts Tues/Thurs Sept. 15, 2026 - Nov. 15, 2027, 7:00pm-9:00pm EST
Sep 2108:00 PM EDT
-10:00 PM EDT
Boost your GMAT score in less than one month in a live online class + 6 months access to TTP OnDemand video courses included! Class starts Mon, Tues, Wed, Thur, Fri Sept. 21, 2026 - Oct. 9, 2027, 7:00pm-10:00pm EST
22 Jun 2026, 19:00
Kudos
Bookmarks
D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
87% (02:00) correct
13%
(02:36)
wrong
based on 71
sessions
History
Date
Time
Result
Not Attempted Yet
A training center issued 180 course certificates last month. Some certificates were marked Advanced, and each certificate was for a course lasting either at least 6 weeks or fewer than 6 weeks. How many of the Advanced certificates were for courses lasting at least 6 weeks?
(1) 45 certificates were marked Advanced and were for courses lasting fewer than 6 weeks. These certificates represented 3/4 of all Advanced certificates.
(2) 50 certificates were not marked Advanced and were for courses lasting at least 6 weeks. These certificates represented 10/13 of all certificates for courses lasting at least 6 weeks.
(1) 45 certificates were marked Advanced and were for courses lasting fewer than 6 weeks. These certificates represented 3/4 of all Advanced certificates.
(2) 50 certificates were not marked Advanced and were for courses lasting at least 6 weeks. These certificates represented 10/13 of all certificates for courses lasting at least 6 weeks.
Experience GMAT Club Test Questions
Yes, you've landed on a GMAT Club Tests question
Craving more? Unlock our full suite of GMAT Club Tests here
Want to experience more? Get a taste of our tests with our free trial today
Rise to the challenge with GMAT Club Tests. Happy practicing!
M47-210
24 Jun 2026, 01:00
Kudos
Bookmarks
GMAT Club Official Solution:
A training center issued 180 course certificates last month. Some certificates were marked Advanced, and each certificate was for a course lasting either at least 6 weeks or fewer than 6 weeks. How many of the Advanced certificates were for courses lasting at least 6 weeks?
The question asks for:
{Advanced and at least 6 weeks}
(1) 45 certificates were marked Advanced and were for courses lasting fewer than 6 weeks. These certificates represented 3/4 of all Advanced certificates.
This gives {Advanced and fewer than 6 weeks} = 45.
So:
{Advanced} = {Advanced and fewer than 6 weeks}/(3/4) = 45/(3/4) = 60
Therefore:
{Advanced and at least 6 weeks} = {Advanced} - {Advanced and fewer than 6 weeks}
{Advanced and at least 6 weeks} = 60 - 45 = 15
Sufficient.
(2) 50 certificates were not marked Advanced and were for courses lasting at least 6 weeks. These certificates represented 10/13 of all certificates for courses lasting at least 6 weeks.
This gives {Not advanced and at least 6 weeks} = 50
So:
{At least 6 weeks} = {Not advanced and at least 6 weeks}/(10/13) = 50/(10/13) = 65
Therefore:
{Advanced and at least 6 weeks} = {At least 6 weeks} - {Not advanced and at least 6 weeks}
{Advanced and at least 6 weeks} = 65 - 50 = 15
Sufficient.
Answer: D.
A training center issued 180 course certificates last month. Some certificates were marked Advanced, and each certificate was for a course lasting either at least 6 weeks or fewer than 6 weeks. How many of the Advanced certificates were for courses lasting at least 6 weeks?
The question asks for:
{Advanced and at least 6 weeks}
(1) 45 certificates were marked Advanced and were for courses lasting fewer than 6 weeks. These certificates represented 3/4 of all Advanced certificates.
This gives {Advanced and fewer than 6 weeks} = 45.
So:
{Advanced} = {Advanced and fewer than 6 weeks}/(3/4) = 45/(3/4) = 60
Therefore:
{Advanced and at least 6 weeks} = {Advanced} - {Advanced and fewer than 6 weeks}
{Advanced and at least 6 weeks} = 60 - 45 = 15
Sufficient.
(2) 50 certificates were not marked Advanced and were for courses lasting at least 6 weeks. These certificates represented 10/13 of all certificates for courses lasting at least 6 weeks.
This gives {Not advanced and at least 6 weeks} = 50
So:
{At least 6 weeks} = {Not advanced and at least 6 weeks}/(10/13) = 50/(10/13) = 65
Therefore:
{Advanced and at least 6 weeks} = {At least 6 weeks} - {Not advanced and at least 6 weeks}
{Advanced and at least 6 weeks} = 65 - 50 = 15
Sufficient.
Answer: D.
General Discussion
22 Jun 2026, 22:44
Kudos
Bookmarks
| advanced | non advanced | total | |
| >= 6 weeks | p= find | ||
| < 6 weeks | |||
| total | 180 |
find= p
S-1
total of advanced is x
course lasting fewer than 6 and advanced course= 45.
this is 75% of all advanced
45 = (3/4) x
x= 60
so p= 15
sufficient.
S-2
total of all >= 6 weeks =x
not advanced and for at least 6 weeks = 50
these are 10/13 of all >= 6 weeks.
50 = (10/13)x
x= 65.
so p =15
this is sufficient.
option D
Bunuel
