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

 It is currently 17 Oct 2019, 17:05

### 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

# What is the length in feet of a ladder 24 feet from the foot of a buil

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 58402
What is the length in feet of a ladder 24 feet from the foot of a buil  [#permalink]

### Show Tags

14 Jan 2019, 00:16
00:00

Difficulty:

15% (low)

Question Stats:

83% (01:13) correct 17% (01:15) wrong based on 41 sessions

### HideShow timer Statistics

What is the length in feet of a ladder 24 feet from the foot of a building that reaches up 18 feet along the wall of the building?

A. 26
B. 28
C. 29
D. 30
E. 32

_________________
Director
Status: Manager
Joined: 27 Oct 2018
Posts: 676
Location: Egypt
GPA: 3.67
WE: Pharmaceuticals (Health Care)
Re: What is the length in feet of a ladder 24 feet from the foot of a buil  [#permalink]

### Show Tags

14 Jan 2019, 02:05
A ladder is leant against the building to form a right angle triangle with the smaller sides are 18 and 24

(18,24) pair is corresponding to (3,4) after multiplying by 6. so we have a Pythagorean triple (3:4:5).
the third side would be 5 multiplied by 6 = 30

D
_________________
Thanks for Kudos
GMAT Club Legend
Joined: 18 Aug 2017
Posts: 5014
Location: India
Concentration: Sustainability, Marketing
GPA: 4
WE: Marketing (Energy and Utilities)
Re: What is the length in feet of a ladder 24 feet from the foot of a buil  [#permalink]

### Show Tags

14 Jan 2019, 03:26
Bunuel wrote:
What is the length in feet of a ladder 24 feet from the foot of a building that reaches up 18 feet along the wall of the building?

A. 26
B. 28
C. 29
D. 30
E. 32

phythogerous triplet 3:4:5
multiplier here is 6
so ans is 30
IMO D
Re: What is the length in feet of a ladder 24 feet from the foot of a buil   [#permalink] 14 Jan 2019, 03:26
Display posts from previous: Sort by