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

 It is currently 16 Oct 2019, 03:18

### 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

# A rectangular box has a length of 6 centimeters, a width of 8 centimet

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 58400
A rectangular box has a length of 6 centimeters, a width of 8 centimet  [#permalink]

### Show Tags

11 Oct 2018, 02:57
00:00

Difficulty:

(N/A)

Question Stats:

78% (01:04) correct 22% (02:01) wrong based on 62 sessions

### HideShow timer Statistics

A rectangular box has a length of 6 centimeters, a width of 8 centimeters, and a height of 10 centimeters. What is the length of the diagonal of the box, in centimeters?

(A) $$10$$

(B) $$12$$

(C) $$10\sqrt{2}$$

(D) $$10\sqrt{3}$$

(E) $$24$$

_________________
CEO
Status: GMATINSIGHT Tutor
Joined: 08 Jul 2010
Posts: 2974
Location: India
GMAT: INSIGHT
Schools: Darden '21
WE: Education (Education)
A rectangular box has a length of 6 centimeters, a width of 8 centimet  [#permalink]

### Show Tags

11 Oct 2018, 04:30
Bunuel wrote:
A rectangular box has a length of 6 centimeters, a width of 8 centimeters, and a height of 10 centimeters. What is the length of the diagonal of the box, in centimeters?

(A) $$10$$

(B) $$12$$

(C) $$10\sqrt{2}$$

(D) $$10\sqrt{3}$$

(E) $$24$$

Longest Diagonal of the Box $$= √(l^2+b^2+h^2) = √(6^2+8^2+10^2) = √200 = 10√2$$

Attachments

File comment: www.GMATinsight.com

Newnew.png [ 4.47 KiB | Viewed 609 times ]

_________________
Prosper!!!
GMATinsight
Bhoopendra Singh and Dr.Sushma Jha
e-mail: info@GMATinsight.com I Call us : +91-9999687183 / 9891333772
Online One-on-One Skype based classes and Classroom Coaching in South and West Delhi
http://www.GMATinsight.com/testimonials.html

ACCESS FREE GMAT TESTS HERE:22 ONLINE FREE (FULL LENGTH) GMAT CAT (PRACTICE TESTS) LINK COLLECTION
Board of Directors
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 4773
Location: India
GPA: 3.5
Re: A rectangular box has a length of 6 centimeters, a width of 8 centimet  [#permalink]

### Show Tags

11 Oct 2018, 07:56
Bunuel wrote:
A rectangular box has a length of 6 centimeters, a width of 8 centimeters, and a height of 10 centimeters. What is the length of the diagonal of the box, in centimeters?

(A) $$10$$

(B) $$12$$

(C) $$10\sqrt{2}$$

(D) $$10\sqrt{3}$$

(E) $$24$$

$$Diagonal = \sqrt{6^2 + 8^2 + 10^2}$$

Or, $$Diagonal = \sqrt{200}$$

Or, $$Diagonal = 10\sqrt{2}$$ ; Answer must be (C)
_________________
Thanks and Regards

Abhishek....

PLEASE FOLLOW THE RULES FOR POSTING IN QA AND VA FORUM AND USE SEARCH FUNCTION BEFORE POSTING NEW QUESTIONS

How to use Search Function in GMAT Club | Rules for Posting in QA forum | Writing Mathematical Formulas |Rules for Posting in VA forum | Request Expert's Reply ( VA Forum Only )
Target Test Prep Representative
Status: Founder & CEO
Affiliations: Target Test Prep
Joined: 14 Oct 2015
Posts: 8069
Location: United States (CA)
Re: A rectangular box has a length of 6 centimeters, a width of 8 centimet  [#permalink]

### Show Tags

13 Oct 2018, 18:45
Bunuel wrote:
A rectangular box has a length of 6 centimeters, a width of 8 centimeters, and a height of 10 centimeters. What is the length of the diagonal of the box, in centimeters?

(A) $$10$$

(B) $$12$$

(C) $$10\sqrt{2}$$

(D) $$10\sqrt{3}$$

(E) $$24$$

We can use the formula to determine the length d of the diagonal:

l^2 + w^2 + h^2 = d^2

6^2 + 8^2 + 10^2 = d^2

36 + 64 + 100 = d^2

200 = d^2

√100 x √2 = d

10√2 = d

_________________

# Scott Woodbury-Stewart

Founder and CEO

Scott@TargetTestPrep.com
122 Reviews

5-star rated online GMAT quant
self study course

See why Target Test Prep is the top rated GMAT quant course on GMAT Club. Read Our Reviews

If you find one of my posts helpful, please take a moment to click on the "Kudos" button.

Re: A rectangular box has a length of 6 centimeters, a width of 8 centimet   [#permalink] 13 Oct 2018, 18:45
Display posts from previous: Sort by