Check GMAT Club Decision Tracker for the Latest School Decision Releases https://gmatclub.com/AppTrack

 It is currently 25 May 2017, 09:56

### 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

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# Foodmart customers regularly buy at least one

Author Message
SVP
Joined: 17 Feb 2010
Posts: 1511
Followers: 19

Kudos [?]: 629 [0], given: 6

### Show Tags

29 Aug 2010, 16:38
00:00

Difficulty:

(N/A)

Question Stats:

100% (02:16) correct 0% (00:00) wrong based on 2 sessions

### HideShow timer Statistics

Foodmart customers regularly buy at least one of the following products: milk, chicken, or apples. 60% of shoppers buy milk, 50% buy chicken, and 35% buy apples. If 10% of the customers buy all 3 products, what percentage of Foodmart customers purchase exactly 2 of the products listed above?
 5%
 10%
 15%
 25%
 30%
[Reveal] Spoiler: OA
Senior Manager
Status: Time to step up the tempo
Joined: 24 Jun 2010
Posts: 408
Location: Milky way
Schools: ISB, Tepper - CMU, Chicago Booth, LSB
Followers: 8

Kudos [?]: 211 [0], given: 50

### Show Tags

29 Aug 2010, 18:16
seekmba wrote:
Foodmart customers regularly buy at least one of the following products: milk, chicken, or apples. 60% of shoppers buy milk, 50% buy chicken, and 35% buy apples. If 10% of the customers buy all 3 products, what percentage of Foodmart customers purchase exactly 2 of the products listed above?
 5%
 10%
 15%
 25%
 30%

Total = n(A) + n(B) - n(Exactly 2 products) -2 (AnBnC) + Neither.

Neither is zero.

Hence 100 = 60 + 50 + 35 - n (Exactly 2 products) - 2*10

100 = 125 - n (Exactly 2 products) => n (Exactly 2 products) = 25.

_________________

Support GMAT Club by putting a GMAT Club badge on your blog

SVP
Joined: 17 Feb 2010
Posts: 1511
Followers: 19

Kudos [?]: 629 [0], given: 6

### Show Tags

29 Aug 2010, 19:15
Thanks ezhilkumarank.

Just wanted to confirm the formula:

Total = n(A) + n(B) n(C0 - n(Exactly 2 products) -2 (AnBnC) + Neither...right???
Senior Manager
Status: Time to step up the tempo
Joined: 24 Jun 2010
Posts: 408
Location: Milky way
Schools: ISB, Tepper - CMU, Chicago Booth, LSB
Followers: 8

Kudos [?]: 211 [0], given: 50

### Show Tags

29 Aug 2010, 19:22
seekmba wrote:
Thanks ezhilkumarank.

Just wanted to confirm the formula:

Total = n(A) + n(B) n(C0 - n(Exactly 2 products) -2 (AnBnC) + Neither...right???

Total = n(A) + n(B) n(C) - n(Exactly 2 products) -2 (AnBnC) + Neither

Correct. I swallowed a part of the formula in the hurry to complete my post.
_________________

Support GMAT Club by putting a GMAT Club badge on your blog

Re: Foodmart customers regularly buy at least one   [#permalink] 29 Aug 2010, 19:22
Display posts from previous: Sort by

# Foodmart customers regularly buy at least one

 Powered by phpBB © phpBB Group and phpBB SEO Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.