GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 19 Nov 2018, 09:50

Close

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
Your Progress

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

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel
Events & Promotions in November
PrevNext
SuMoTuWeThFrSa
28293031123
45678910
11121314151617
18192021222324
2526272829301
Open Detailed Calendar
  • How to QUICKLY Solve GMAT Questions - GMAT Club Chat

     November 20, 2018

     November 20, 2018

     09:00 AM PST

     10:00 AM PST

    The reward for signing up with the registration form and attending the chat is: 6 free examPAL quizzes to practice your new skills after the chat.
  • The winning strategy for 700+ on the GMAT

     November 20, 2018

     November 20, 2018

     06:00 PM EST

     07:00 PM EST

    What people who reach the high 700's do differently? We're going to share insights, tips and strategies from data we collected on over 50,000 students who used examPAL.

In a survey of 320 employees, 35 percent said that they take tea, and

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 50670
In a survey of 320 employees, 35 percent said that they take tea, and  [#permalink]

Show Tags

New post 25 Oct 2018, 01:12
00:00
A
B
C
D
E

Difficulty:

  35% (medium)

Question Stats:

74% (01:54) correct 26% (01:29) wrong based on 38 sessions

HideShow timer Statistics

In a survey of 320 employees, 35 percent said that they take tea, and 45 percent said that they take coffee. What percent of those surveyed said that they take neither tea nor coffee?

(1) 25 percent of the employees said that they take coffee but not tea.
(2) 400/7 percent of the employees who said that they take tea also said that they also take coffee.

_________________

New to the Math Forum?
Please read this: Ultimate GMAT Quantitative Megathread | All You Need for Quant | PLEASE READ AND FOLLOW: 12 Rules for Posting!!!

Resources:
GMAT Math Book | Triangles | Polygons | Coordinate Geometry | Factorials | Circles | Number Theory | Remainders; 8. Overlapping Sets | PDF of Math Book; 10. Remainders | GMAT Prep Software Analysis | SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) | Tricky questions from previous years.

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. ,11 Mixed Questions, 12 Fresh Meat

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., 11 New DS set.


What are GMAT Club Tests?
Extra-hard Quant Tests with Brilliant Analytics

examPAL Representative
User avatar
G
Joined: 07 Dec 2017
Posts: 799
Re: In a survey of 320 employees, 35 percent said that they take tea, and  [#permalink]

Show Tags

New post 25 Oct 2018, 03:05
The answer is C.

This answer is best solved Logically - there's no need to actually solve it, but only to examine if there is enough information to do so.

There are 4 potential groups: just coffee, just tea, both, and neither. We need to find one (neither), so we need the 3 others in order to find it.
Starting off, we have none of the groups (knowing how many took coffee or tea doesn't tell us the size of any of the 4 groups). 1) and 2) on their own don't bridge this gap - neither is enough to know the size of 3 of the groups.
combined, however, we do have enough info: 1) tells us the size of a) just coffee, from which we can find b) both. from 2) we can find c) just tea - that's enough to find d) neither!!! answer C.
_________________

Image
Sign up for 7-day free trial
Image

I am a CR Expert - Ask Me ANYTHING about CR
I am a DS Expert - Ask Me ANYTHING about DS


Halloween SALE at exmaPAL!

Save 25% on any GMAT/GRE course! Claim it today.

Intern
Intern
avatar
B
Joined: 25 Jul 2018
Posts: 10
Re: In a survey of 320 employees, 35 percent said that they take tea, and  [#permalink]

Show Tags

New post 25 Oct 2018, 07:34
1
I dont know if this is right but

Q: asks for people who neither drink coffee nor tea. Total = 100 ; T=35 ; C=45 . I guess we do not need to consider the 320 people because question is about percentage and Coffee and Tea drinker are given in percentage.

Formula: Total=T+C - BOTH + NEITHER --> 100=35+45 -Both + Neither
Q asks for Neither so any statement that can give us -Both would be sufficient.

S1: 25% said Coffee yes, tea no --> so only coffee = 45-25= 20% only drink coffee; 20 is the both value ; Neither= 100-35-45+20 = 40
S2: 400/7 percent of tea drinker also drink coffee. --> 400/7 percent = 400/7*100 (bc. of percent) = 4/7 so Both value= 4/7*35= 20 ; again Neither=100-35-45+20=40

Both statements are alone sufficient, Hence D.

Since both answers yield me the same result Both=20 ; Neither=40 I hope it is right.
GMAT Club Bot
Re: In a survey of 320 employees, 35 percent said that they take tea, and &nbs [#permalink] 25 Oct 2018, 07:34
Display posts from previous: Sort by

In a survey of 320 employees, 35 percent said that they take tea, and

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  


Copyright

GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

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®.