A certain car dealership offers its newest model in ten

Oldest

Best Reply

Author

Message

TAGS:

Manager

Joined: 09 Feb 2013

Posts: 91

Followers: 0

Kudos [?]: 54 [0], given: 17

A certain car dealership offers its newest model in ten [#permalink]

11 Mar 2013, 23:41

00:00

Question Stats:

92% (01:43) correct

7% (00:03) wrong

based on 1 sessions

A certain car dealership offers its newest model in ten exterior and ten interior colors. If the ten interior colors are identical to the ten exterior colors, and the dealership sells every pair of colors except those that would result in a car with an identically colored interior and exterior, how many different color combinations are possible?

A. 45
B. 81
C. 90
D. 10!/2!
E. 10!

[Reveal] Spoiler: OA

_________________

Kudos will encourage many others, like me.
Good Questions also deserve few KUDOS.

Last edited by Bunuel on 12 Mar 2013, 02:03, edited 1 time in total.

Edited the question.

GMAT Club team member

Joined: 02 Sep 2009

Posts: 11563

Followers: 1795

Kudos [?]: 9569 [0], given: 826

Re: A certain car dealership offers its newest model in ten [#permalink]

12 Mar 2013, 02:07

emmak wrote:

There are 10*10=100 different combinations of interior and exterior, out of which 10 will be with an identically colored interior and exterior (1-1, 2-2, 3-3, ..., 10-10), thus the answer is 100-10=90.

Answer: C.

Hope it's clear.
_________________

PLEASE READ AND FOLLOW: 11 Rules for Posting!!!

RESOURCES: [GMAT MATH BOOK]; 1. Triangles; 2. Polygons; 3. Coordinate Geometry; 4. Factorials; 5. Circles; 6. Number Theory

COLLECTION OF QUESTIONS:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. NEW!!!

DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS ; 9 Devil's Dozen!!!; 10 Number Properties set. NEW!!!

What are GMAT Club Tests?
25 extra-hard Quant Tests

Find out what's new at GMAT Club - latest features and updates

Re: A certain car dealership offers its newest model in ten [#permalink] 12 Mar 2013, 02:07

		Similar topics	Author	Replies	Last post
Similar Topics:		Of the 25 cars sold at a certain dealership yesterday, some	b14kumar	5	09 Sep 2007, 16:25
		Of the 25 cars sold at a certain dealership yestarday, some	marcodonzelli	5	28 Dec 2007, 09:29
	1	Of the 25 cars sold at a certain dealership yesterday, some	sarzan	1	23 Aug 2008, 18:37
		Last september the sales total for a certain car dealership	HVD1975	3	31 Aug 2008, 18:45
	1	The numbers of cars sold at a certain dealership on six of	Bunuel	4	06 Aug 2012, 02:43

A certain car dealership offers its newest model in ten

Main navigation

GMAT Resources

Partners

MBA Resources

GMAT ® is a registered trademark of the Graduate Management Admission Council ® (GMAC ®). GMAT Club's website has not been reviewed or endorsed by GMAC.

GMAT Courses

Admissions Consulting

A certain car dealership offers its newest model in ten

A certain car dealership offers its newest model in ten

Main navigation

GMAT Resources

Partners

MBA Resources