It is currently 23 Jun 2017, 00:15

### 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

# GMAT Test M14 Master Thread - All discussions

Author Message
GMAT Club team member
Joined: 16 Mar 2009
Posts: 115
Location: Bologna, Italy

### Show Tags

13 May 2009, 00:50
Manager
Joined: 12 Apr 2009
Posts: 208

### Show Tags

21 May 2009, 01:23
1
KUDOS
I think there is an error with question 12.
_________________

-talent is the desire to practice-

Manager
Joined: 12 Apr 2009
Posts: 208

### Show Tags

21 May 2009, 20:47
1
KUDOS
$$(125.4 - \frac{12}{5}) = 124.4 - 2.4 = 122$$ . 34% of 122 is a little more than $$\frac{122}{3} = 41$$ . Among the listed choices, C is the closest.

Am I mistaken or did it change from 125.4 to 124.4 incorrectly? I think the answer is the same but there might be something wrong with the explanation.

che,
dg
_________________

-talent is the desire to practice-

Founder
Joined: 04 Dec 2002
Posts: 15136
Location: United States (WA)
GMAT 1: 750 Q49 V42

### Show Tags

21 May 2009, 02:24
Thank you for the feedback.
I Just ran it on a calculator and it matched. Don't see any errors - please provide more info so I can look into it.
_________________

Founder of GMAT Club

US News Rankings progression - last 10 years in a snapshot - New!
Just starting out with GMAT? Start here...
Need GMAT Book Recommendations? Best GMAT Books

Co-author of the GMAT Club tests

Founder
Joined: 04 Dec 2002
Posts: 15136
Location: United States (WA)
GMAT 1: 750 Q49 V42

### Show Tags

21 May 2009, 21:07
You are correct - there is a 124 instead of 125 in the explanation. That will be fixed.
Thank you.
_________________

Founder of GMAT Club

US News Rankings progression - last 10 years in a snapshot - New!
Just starting out with GMAT? Start here...
Need GMAT Book Recommendations? Best GMAT Books

Co-author of the GMAT Club tests

Senior Manager
Joined: 29 Sep 2009
Posts: 392
GMAT 1: 690 Q47 V38
M14#07 calcs inconsistent with question statement [#permalink]

### Show Tags

16 Mar 2010, 20:23
1 Jack is painting twice as fast as Tom.
2 If Tom painted twice as fast as he actually does, the brothers would finish the work in 3 hours
Explanation:
Statement (1) by itself is sufficient. S1 reduces to equation 1/J + 1/(2J) = 1/4, where J denotes the time it takes Jack to paint the wall alone. From this equation J=6
Statement (2) by itself is sufficient. S2 reduces to equation: 1/J + 2*(1/4 – 1/J) = 1/3 ; J=6
****
When you say Jack painted twice as fast as Tom it means - Toms time is double or rate is 1/2 - explanation for 1 is fine.
When you move on to 2: If Tom painted twice as fast as he actually did - maintaining the same symbology as in statement 1, statement 2 should be
1/J + 1/2(1/4-1/J) = 1/3. (With this equation you dont get a unique solution using statements 1 and 2 individually).
I understand 1/J and (1/4-1/J )are rates and twice as fast means work is done in half the time or at double the rate. It would have been nice if the problem statement/solution were consistent !
Senior Manager
Joined: 29 Sep 2009
Posts: 392
GMAT 1: 690 Q47 V38

### Show Tags

16 Mar 2010, 22:00
Problem statement seems open ended.
A 5 meter long wire is cut into two pieces. If the longer piece is then used to form a perimeter of a square, what is the probability that the area of the square will be more than 1 if the original wire was cut at an arbitrary point?

I agree with the explanation given in the solution, but there can be infinite points in the first or the last 1 meter. I mean you can cut it at 0.1,0.11,0.2....similarly on the other side you can cut it at 4.1,4.11,4.12,4.13 etc. If I were the problem-setter I would put in a rider/statement that in someway restricts the number of favorable outcomes.
m14#17   [#permalink] 16 Mar 2010, 22:00
Similar topics Replies Last post
Similar
Topics:
2 GMAT Test M12 Master Thread - All discussions 5 28 Jun 2011, 04:50
GMAT Test M18 Master Thread - All discussions 0 13 May 2009, 00:11
GMAT Test M19 Master Thread - All discussions 0 12 May 2009, 23:34
GMAT Test M23 Master Thread - All discussions 2 04 Mar 2011, 04:33
GMAT Test M24 Master Thread - All discussions 0 12 May 2009, 21:49
Display posts from previous: Sort by

# GMAT Test M14 Master Thread - All discussions

Moderator: Bunuel

 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®.