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

 It is currently 14 Aug 2018, 18:34

### 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

# Qs.1. A rectangular wooden crate has inside 3 dimensions, 3

Author Message
Intern
Joined: 31 Jul 2008
Posts: 7
Qs.1. A rectangular wooden crate has inside 3 dimensions, 3  [#permalink]

### Show Tags

31 Jul 2008, 19:32
1
Qs.1. A rectangular wooden crate has inside 3 dimensions, 3 meters by 4 meters by 12 meters. What is the length in meters, of the longest, straight, inflexible rod of negligible diameter that can be placed completely within the crate?
A) 12
B) 12.6
C) 13
D) 19
E) 24

Qs.2. The average of x,y and z is 50. What is the sum of (4x+y), (3y+z), and (3z)?
A) 150
B) 200
C) 600
D) 800
E) Cannot be determined from given informaiton

--== Message from GMAT Club Team ==--

This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.
SVP
Joined: 29 Aug 2007
Posts: 2420

### Show Tags

31 Jul 2008, 19:42
razkhan wrote:
Qs.1. A rectangular wooden crate has inside 3 dimensions, 3 meters by 4 meters by 12 meters. What is the length in meters, of the longest, straight, inflexible rod of negligible diameter that can be placed completely within the crate?
A) 12
B) 12.6
C) 13
D) 19
E) 24

I GUESS 13 WITHOUT CALCULATION..
_________________

Gmat: http://gmatclub.com/forum/everything-you-need-to-prepare-for-the-gmat-revised-77983.html

GT

Senior Manager
Joined: 09 Oct 2007
Posts: 456

### Show Tags

31 Jul 2008, 20:02
Agree on 1.

However, Qs.2 = B IMO

The sum of (4x+y), (3y+z), and (3z) = 4x+4y+4z = 4(x+y+z) = 4(50) = 200 or am I missing something obvious?
Senior Manager
Joined: 06 Mar 2006
Posts: 474

### Show Tags

31 Jul 2008, 20:36
asdert wrote:
Agree on 1.

However, Qs.2 = B IMO

The sum of (4x+y), (3y+z), and (3z) = 4x+4y+4z = 4(x+y+z) = 4(50) = 200 or am I missing something obvious?

The question says the average of x, y, and z is 50, so x+y+z=3*50 or 150. So it should be 4(150)=600
Current Student
Joined: 12 Jun 2008
Posts: 286
Schools: INSEAD Class of July '10

### Show Tags

01 Aug 2008, 01:41
asdert wrote:
Agree on 1.

However, Qs.2 = B IMO

The sum of (4x+y), (3y+z), and (3z) = 4x+4y+4z = 4(x+y+z) = 4(50) = 200 or am I missing something obvious?

Average of $$x$$,$$y$$ and $$z$$ is $$50$$ means $$\frac{x+y+z}{3} = 50$$
Senior Manager
Joined: 09 Oct 2007
Posts: 456

### Show Tags

01 Aug 2008, 12:43
Burro. Thanks for the clarification.
VP
Joined: 17 Jun 2008
Posts: 1279

### Show Tags

01 Aug 2008, 22:12
razkhan wrote:
Qs.1. A rectangular wooden crate has inside 3 dimensions, 3 meters by 4 meters by 12 meters. What is the length in meters, of the longest, straight, inflexible rod of negligible diameter that can be placed completely within the crate?
A) 12
B) 12.6
C) 13
D) 19
E) 24

Answer = 13 size of diagonal
Qs.2. The average of x,y and z is 50. What is the sum of (4x+y), (3y+z), and (3z)?
A) 150
B) 200
C) 600
D) 800
E) Cannot be determined from given informaiton

_________________

cheers
Its Now Or Never

Intern
Joined: 31 Jul 2008
Posts: 7

### Show Tags

03 Aug 2008, 10:41
how do we conclude answer is 13 for Question 1.
SVP
Joined: 07 Nov 2007
Posts: 1728
Location: New York

### Show Tags

04 Aug 2008, 13:58
razkhan wrote:
how do we conclude answer is 13 for Question 1.

see the picture

you need to find d = sqrt(x^2 + l^2)
x=sqrt(h^2 + w^2)
= sqrt(3^2 + 4^2) =5
d= sqrt(5^2 + 12^2)
=13

--== Message from GMAT Club Team ==--

This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.

Attachments

rectangular_solid.JPG [ 5.79 KiB | Viewed 9461 times ]

_________________

Smiling wins more friends than frowning

Re: Trap Questions &nbs [#permalink] 04 Aug 2008, 13:58
Display posts from previous: Sort by

# Qs.1. A rectangular wooden crate has inside 3 dimensions, 3

Moderator: chetan2u

# Events & Promotions

 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®.