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.
Apr 2512:30 AM EDT
-01:30 AM EDT
At one point, she believed GMAT wasn’t for her. After scoring 595, self-doubt crept in and she questioned her potential. But instead of quitting, she made the right strategic changes. The result? A remarkable comeback to 695. Check out how Saakshi did it.
Apr 2601:30 AM EDT
-02:30 AM EDT
Learn how Keshav, a Chartered Accountant, scored an impressive 705 on GMAT in just 30 days with GMATWhiz's expert guidance. In this video, he shares preparation tips and strategies that worked for him, including the mock, time management, and more.
Apr 2610:00 AM EDT
-11:00 AM EDT
The Target Test Prep course represents a quantum leap forward in GMAT preparation, a radical reinterpretation of the way that students should study. Try before you buy with a 5-day, full-access trial of the course for FREE!
Apr 2711:00 AM EDT
-12:00 PM EDT
Prefer video-based learning? The Target Test Prep OnDemand course is a one-of-a-kind video masterclass featuring 400 hours of lecture-style teaching by Scott Woodbury-Stewart, founder of Target Test Prep and one of the most accomplished GMAT instructors
Apr 2808:00 AM PDT
-11:00 AM PDT
Whether you are just beginning your MBA journey or fine-tuning your path to a 700+ score, GMAT Day is designed to give you a competitive edge.
May 0111:00 AM PDT
-12:00 PM PDT
Free- full-length test + 15 concept videos + 150+ short videos + study plan!
11 Sep 2022, 04:36
Kudos
Bookmarks
A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
35%
(medium)
Question Stats:
68% (01:29) correct
32%
(02:00)
wrong
based on 157
sessions
History
Date
Time
Result
Not Attempted Yet
7 people (A, B, C, D, E, F and G) go to a movie and sit next to each other in 8 adjacent seats in the front row of the theatre. A will not sit to the left of F in how many different arrangements?
A) 8!/2
B) 8!/3
C) 8!/4
D) 8!/5
E) 8!/6
A) 8!/2
B) 8!/3
C) 8!/4
D) 8!/5
E) 8!/6
11 Sep 2022, 04:52
Kudos
Bookmarks
A symmetry combinatorics question
Ok, so first things first:
7 people can be arranged on 8 seats in 8p7 ways = 8!
Now in each of those arrangements, A will either be to the left of F or to the right of F
Which tells us that in half of those arrangements, A will be to the left of F and in the other half, A will be to the right of F
So, arrangments in which A is not to the left of F = 1/2 of total arrangments
8!/2
Answer - A
Posted from my mobile device
Ok, so first things first:
7 people can be arranged on 8 seats in 8p7 ways = 8!
Now in each of those arrangements, A will either be to the left of F or to the right of F
Which tells us that in half of those arrangements, A will be to the left of F and in the other half, A will be to the right of F
So, arrangments in which A is not to the left of F = 1/2 of total arrangments
8!/2
Answer - A
Posted from my mobile device
11 Sep 2022, 05:38
Kudos
Bookmarks
Given: 7 people (A, B, C, D, E, F and G) go to a movie and sit next to each other in 8 adjacent seats in the front row of the theatre.
Asked: A will not sit to the left of F in how many different arrangements?
Number of ways to arrange 7 people in 8 adjacent seats = 8P7 = 8!
Number of ways in which A will not sit to the left of F = 8!/2
IMO A
Asked: A will not sit to the left of F in how many different arrangements?
Number of ways to arrange 7 people in 8 adjacent seats = 8P7 = 8!
Number of ways in which A will not sit to the left of F = 8!/2
IMO A
