A rectangular box is 10 inches wide, 10 inches long, and 5 : Quant Question Archive [LOCKED]
Check GMAT Club Decision Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 22 Jan 2017, 21:08

### 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

# A rectangular box is 10 inches wide, 10 inches long, and 5

Author Message
Intern
Joined: 16 Apr 2005
Posts: 15
Followers: 0

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

A rectangular box is 10 inches wide, 10 inches long, and 5 [#permalink]

### Show Tags

20 Apr 2005, 10:32
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

A rectangular box is 10 inches wide, 10 inches long, and 5 inches high. What is the greatest possible (straight-line) distance, in inches, between any two points on the box?

1) 15
2) 20
3) 25
4) 10 * square root 2
5) 10 * square root 3

Is there an equation to figure this out?
Director
Joined: 27 Dec 2004
Posts: 905
Followers: 1

Kudos [?]: 43 [0], given: 0

### Show Tags

20 Apr 2005, 10:38
Ans is A

Diagonal is the longest distance in a rectangular box.

Diagonal D = sqrt (L^2 + W^2 + H^2)

D = sqrt (10^2 + 10^2 + 5^2)
D = sqrt (225)
D = 15.
Senior Manager
Joined: 19 Feb 2005
Posts: 486
Location: Milan Italy
Followers: 1

Kudos [?]: 23 [0], given: 0

### Show Tags

20 Apr 2005, 10:51
well, my reasoning below leads me to 15.
Attachments

Immagine.JPG [ 12.41 KiB | Viewed 779 times ]

VP
Joined: 25 Nov 2004
Posts: 1493
Followers: 7

Kudos [?]: 98 [0], given: 0

### Show Tags

20 Apr 2005, 12:59
thearch wrote:
well, my reasoning below leads me to 15.

nice and clear drawing
Senior Manager
Joined: 11 May 2004
Posts: 458
Location: New York
Followers: 1

Kudos [?]: 47 [0], given: 0

### Show Tags

07 Dec 2005, 06:22
This is an old post, but I just wanted to make sure everyone knew the quick and easy formula:

Take 10^2+10^2+5^2
We get 100+100+25 = 225
Take the square root of this to get 15.

No geometry or equations needed.
Senior Manager
Joined: 03 Nov 2005
Posts: 396
Location: Chicago, IL
Followers: 3

Kudos [?]: 50 [0], given: 17

### Show Tags

07 Dec 2005, 12:23
The longest rot that can fit into a rectangular box=sq rt. l^2+w^2+h^2= sqrt.10^2+10^2+5^2=sqrt 222=15

A stands
_________________

Hard work is the main determinant of success

07 Dec 2005, 12:23
Display posts from previous: Sort by