It is currently 18 Nov 2017, 05:24

### 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

# 70% of the employees in a MNC hav VCD player, 75% have Ovens

Author Message
Manager
Joined: 19 Aug 2009
Posts: 78

Kudos [?]: 283 [0], given: 46

70% of the employees in a MNC hav VCD player, 75% have Ovens [#permalink]

### Show Tags

03 Nov 2009, 23:00
2
This post was
BOOKMARKED
00:00

Difficulty:

(N/A)

Question Stats:

50% (04:38) correct 50% (00:54) wrong based on 14 sessions

### HideShow timer Statistics

70% of the employees in a MNC hav VCD player, 75% have Ovens,80% have ACs, 85% have Washing machines. At least what % of employees has all 4 gadgets?
1.15
2.5
3.10

Kudos [?]: 283 [0], given: 46

Joined: 20 Aug 2009
Posts: 305

Kudos [?]: 165 [4], given: 69

Location: Tbilisi, Georgia
Schools: Stanford (in), Tuck (WL), Wharton (ding), Cornell (in)

### Show Tags

04 Nov 2009, 01:21
4
KUDOS
1
This post was
BOOKMARKED
1) How many have VCD and Ovens?

70% + 75% - 100% = 45%

2) How many have VCD, Ovens and ACs?

45% +80% - 100% = 25%

3) How many have all 4?

25% +85% - 100% = 10%

Kudos [?]: 165 [4], given: 69

Senior Manager
Status: mba here i come!
Joined: 07 Aug 2011
Posts: 261

Kudos [?]: 1246 [1], given: 48

### Show Tags

22 Feb 2012, 13:53
1
KUDOS
v 70%
o 75%
a 80%
w 85%

min employees having o+v = 70-25 = 45 (for min case, assuming that 25 of those who don't possess 'o' possess 'v')

min employees having a+w = 80-15 = 65
min employees having all four = 45-35 = 10
_________________

press +1 Kudos to appreciate posts

Kudos [?]: 1246 [1], given: 48

Re: Set theory problem   [#permalink] 22 Feb 2012, 13:53
Display posts from previous: Sort by