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

It is currently 20 Sep 2018, 17:21

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

Which of the following statements can be inferred from the table?

  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: 49271
Which of the following statements can be inferred from the table?  [#permalink]

Show Tags

New post 02 Nov 2017, 23:05
00:00
A
B
C
D
E

Difficulty:

  35% (medium)

Question Stats:

69% (01:21) correct 31% (01:23) wrong based on 127 sessions

HideShow timer Statistics

Image
Which of the following statements can be inferred from the table?

I. The average number of hours worked per worker is less than 40.
II. At least 3 workers worked more than 48 hours.
III. More than half of all the workers worked more than 40 hours.

(A) I only
(B) II only
(C) I and II only
(D) I and III only
(E) I, II, and III

Attachment:
2017-11-03_1003.png
2017-11-03_1003.png [ 26.32 KiB | Viewed 1356 times ]

_________________

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

Director
Director
User avatar
P
Joined: 18 Aug 2016
Posts: 629
Concentration: Strategy, Technology
GMAT 1: 630 Q47 V29
GMAT 2: 740 Q51 V38
GMAT ToolKit User Premium Member Reviews Badge
Re: Which of the following statements can be inferred from the table?  [#permalink]

Show Tags

New post 02 Nov 2017, 23:58
Bunuel wrote:
Image
Which of the following statements can be inferred from the table?

I. The average number of hours worked per worker is less than 40.
II. At least 3 workers worked more than 48 hours.
III. More than half of all the workers worked more than 40 hours.

(A) I only
(B) II only
(C) I and II only
(D) I and III only
(E) I, II, and III

Attachment:
2017-11-03_1003.png

I) 3100/80 <40..can be inferred
II) 3100 - (4*29 + 16*34 + 25*39 + 15*44) = 3100 - (116 + 544 + 975 + 660) = 805
805/20 = ~40..cannot be inferred
III) 45 labors worked for <40 hrs...inferred to be wrong

A
_________________

We must try to achieve the best within us


Thanks
Luckisnoexcuse

Target Test Prep Representative
User avatar
G
Status: Founder & CEO
Affiliations: Target Test Prep
Joined: 14 Oct 2015
Posts: 3516
Location: United States (CA)
Re: Which of the following statements can be inferred from the table?  [#permalink]

Show Tags

New post 06 Nov 2017, 18:03
1
Bunuel wrote:
Image
Which of the following statements can be inferred from the table?

I. The average number of hours worked per worker is less than 40.
II. At least 3 workers worked more than 48 hours.
III. More than half of all the workers worked more than 40 hours.

(A) I only
(B) II only
(C) I and II only
(D) I and III only
(E) I, II, and III

Attachment:
2017-11-03_1003.png


Let’s analyze each answer choice:

I. The average number of hours worked per worker is less than 40.

Since we are actually given 3,100 as the total number of hours worked by all 80 workers, the average number of hour worked per worker is 3,100/80 = 38.75. Statement I is true.

II. At least 3 workers worked more than 48 hours.

Although there are 20 workers who worked 45 to 50 hours, inclusive, we can’t be certain that there are at least 3 workers who worked more than 48 hours. It’s possible that all 20 workers in this category worked 46 hours. Statement II is not necessarily true.

III. More than half of all the workers worked more than 40 hours.

We can see that 20 + 15 = 35 workers worked 40 hours or more. However, there are 80 workers in total, and 35 is less than half of 80. Thus, we can’t infer that more than half of all the workers worked more than 40 hours. Statement III is not true.

Answer: A
_________________

Scott Woodbury-Stewart
Founder and CEO

GMAT Quant Self-Study Course
500+ lessons 3000+ practice problems 800+ HD solutions

Manager
Manager
avatar
B
Joined: 27 Jul 2017
Posts: 52
Re: Which of the following statements can be inferred from the table?  [#permalink]

Show Tags

New post 13 Mar 2018, 08:13
Bunuel wrote:
Image
Which of the following statements can be inferred from the table?

I. The average number of hours worked per worker is less than 40.
II. At least 3 workers worked more than 48 hours.
III. More than half of all the workers worked more than 40 hours.

(A) I only
(B) II only
(C) I and II only
(D) I and III only
(E) I, II, and III

Attachment:
2017-11-03_1003.png


Let's deduce what we've got based on given three statements:
I. The average number of hours worked per worker is less than 40, so this requires a bit calculation let's hold this option for a while.
II. At least 3 workers worked more than 48 hours, by given data we only that 20 workers worked between 45-50 hours no specific information about workers worked more than 48 hours. So this is out.
III. More than half of all the workers worked more than 40 hours, by given data we know only (15 + 20) = 35 workers worked for more than 40 hours and 35 is not half of 80. So this is also out.

By looking at answers choices, here on we can say that only statement I is true. Hence the answer is (A). Also if you have noticed no calculations was involved in answering it.
_________________

Ujjwal
Sharing is Gaining!

Re: Which of the following statements can be inferred from the table? &nbs [#permalink] 13 Mar 2018, 08:13
Display posts from previous: Sort by

Which of the following statements can be inferred from the table?

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

Events & Promotions

PREV
NEXT


cron

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®.