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

It is currently 16 Jun 2019, 22:29

Close

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
Your Progress

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

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel

Each step of a staircase is 0.25 meter wide and 0.20 meter high

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

 
Retired Moderator
avatar
V
Joined: 22 Jun 2014
Posts: 1108
Location: India
Concentration: General Management, Technology
GMAT 1: 540 Q45 V20
GPA: 2.49
WE: Information Technology (Computer Software)
GMAT ToolKit User
Each step of a staircase is 0.25 meter wide and 0.20 meter high  [#permalink]

Show Tags

New post 23 Nov 2018, 08:42
4
7
00:00
A
B
C
D
E

Difficulty:

  55% (hard)

Question Stats:

65% (02:11) correct 35% (02:20) wrong based on 144 sessions

HideShow timer Statistics

Image
Each step of a staircase is 0.25 meter wide and 0.20 meter high, as shown in the figure above. All angles shown in the figure are right angles. If the height of the staircase is 3.6 meters and the landing at the top of the staircase is 1 meter wide, how long, in meters, is AB?

(A) 3.0
(B) 4.25
(C) 4.5
(D) 5.25
(E) 5.5

Project PS Butler : Question #35


Subscribe to get Daily Email - Click Here | Subscribe via RSS - RSS

Attachment:
Stairs.JPG
Stairs.JPG [ 26.14 KiB | Viewed 1594 times ]

_________________
RC Moderator
User avatar
V
Joined: 24 Aug 2016
Posts: 804
Location: Canada
Concentration: Entrepreneurship, Operations
GMAT 1: 630 Q48 V28
GMAT 2: 540 Q49 V16
GMAT ToolKit User Premium Member Reviews Badge CAT Tests
Each step of a staircase is 0.25 meter wide and 0.20 meter high  [#permalink]

Show Tags

New post Updated on: 23 Nov 2018, 12:37
1
As per the Q the solution might look like :
total steps = 3.6/0.2 =18
height intervals = 18-1= 17
width covered by 17 intervals = 17*0.25= 4.25m
Hence Ab = 4.25+1=5.25m ..... Ans D
_________________
Please let me know if I am going in wrong direction.
Thanks in appreciation.

Originally posted by u1983 on 23 Nov 2018, 10:04.
Last edited by u1983 on 23 Nov 2018, 12:37, edited 1 time in total.
cleaning up
CR Forum Moderator
avatar
V
Joined: 25 Apr 2018
Posts: 570
Premium Member Reviews Badge CAT Tests
Re: Each step of a staircase is 0.25 meter wide and 0.20 meter high  [#permalink]

Show Tags

New post 23 Nov 2018, 11:15
Hello HKD1710

I think you for forgot :lol: to attach the image.

Thanks!
_________________
Please give kudos if you found my posts helpful!

Project CR Butler - 2 CR's everyday
VP
VP
User avatar
D
Joined: 09 Mar 2016
Posts: 1279
Re: Each step of a staircase is 0.25 meter wide and 0.20 meter high  [#permalink]

Show Tags

New post 23 Nov 2018, 11:57
HKD1710 wrote:
Each step of a staircase is 0.25 meter wide and 0.20 meter high, as shown in the figure above. All angles shown in the figure are right angles. If the height of the staircase is 3.6 meters and the landing at the top of the staircase is 1 meter wide, how long, in meters, is AB?

(A) 3.0
(B) 4.25
(C) 4.5
(D) 5.25
(E) 5.5

Project PS Butler : Question #35


Subscribe to get Daily Email - Click Here | Subscribe via RSS - RSS


HKD1710 i know you dont like posting questions with diagrams :lol: though it would be nice to see "the figure above" :grin:
Retired Moderator
avatar
V
Joined: 22 Jun 2014
Posts: 1108
Location: India
Concentration: General Management, Technology
GMAT 1: 540 Q45 V20
GPA: 2.49
WE: Information Technology (Computer Software)
GMAT ToolKit User
Each step of a staircase is 0.25 meter wide and 0.20 meter high  [#permalink]

Show Tags

New post 23 Nov 2018, 12:31
Thank you gmat1393 and dave13. I just updated the question with Image.u1983, Didn't need it, Great Quant skills :)
_________________
Director
Director
User avatar
P
Joined: 20 Sep 2016
Posts: 637
Location: India
Concentration: Strategy, Operations
GPA: 3.95
WE: Operations (Real Estate)
GMAT ToolKit User CAT Tests
Re: Each step of a staircase is 0.25 meter wide and 0.20 meter high  [#permalink]

Show Tags

New post 24 Nov 2018, 06:49
We don't necessarily need the image .. just the total height and height of a single stair is enough to know number of steps.

36/2 = 18 stairs

17 stairs have length 0.25
Top stair has 1 m length
So 17* 0.25 + 1 = 5.25

Nice question.

Posted from my mobile device
VP
VP
avatar
G
Joined: 09 Mar 2018
Posts: 1004
Location: India
Re: Each step of a staircase is 0.25 meter wide and 0.20 meter high  [#permalink]

Show Tags

New post 09 Feb 2019, 20:55
HKD1710 wrote:
Image
Each step of a staircase is 0.25 meter wide and 0.20 meter high, as shown in the figure above. All angles shown in the figure are right angles. If the height of the staircase is 3.6 meters and the landing at the top of the staircase is 1 meter wide, how long, in meters, is AB?

(A) 3.0
(B) 4.25
(C) 4.5
(D) 5.25
(E) 5.5



So if height = 3.6 m this means that there are in total of 18 such steps, each 0.20 m high

Out of which 2 are consumed as shown in the figure remaining will be 16

We are given length of AB in answer choices, we can subtract 1.25 from it, to get the value which, we have to look out for when

answer options / by 0.25 will give us 16

Only D is the correct choice here.
_________________
If you notice any discrepancy in my reasoning, please let me know. Lets improve together.

Quote which i can relate to.
Many of life's failures happen with people who do not realize how close they were to success when they gave up.
Manager
Manager
avatar
B
Joined: 23 Apr 2018
Posts: 71
Re: Each step of a staircase is 0.25 meter wide and 0.20 meter high  [#permalink]

Show Tags

New post 14 Jun 2019, 05:58
HKD1710 wrote:
Image
Each step of a staircase is 0.25 meter wide and 0.20 meter high, as shown in the figure above. All angles shown in the figure are right angles. If the height of the staircase is 3.6 meters and the landing at the top of the staircase is 1 meter wide, how long, in meters, is AB?

(A) 3.0
(B) 4.25
(C) 4.5
(D) 5.25
(E) 5.5

Project PS Butler : Question #35


Subscribe to get Daily Email - Click Here | Subscribe via RSS - RSS

Attachment:
Stairs.JPG



I want to ask
why multiplying 18*0.25 = 4.5 m
option C

wrong here ?
how to make sure that we need to account for 17 steps here and add the last one ?
can anyone clarify on this doubt ?
Intern
Intern
avatar
B
Joined: 11 Feb 2018
Posts: 20
Re: Each step of a staircase is 0.25 meter wide and 0.20 meter high  [#permalink]

Show Tags

New post 15 Jun 2019, 06:45
u1983 wrote:
As per the Q the solution might look like :
total steps = 3.6/0.2 =18
height intervals = 18-1= 17
width covered by 17 intervals = 17*0.25= 4.25m
Hence Ab = 4.25+1=5.25m ..... Ans D


Can you please explain why we minus 1 step. Why is the answer not 18 * .25+1= 5.5m?

Thanks
GMAT Club Bot
Re: Each step of a staircase is 0.25 meter wide and 0.20 meter high   [#permalink] 15 Jun 2019, 06:45
Display posts from previous: Sort by

Each step of a staircase is 0.25 meter wide and 0.20 meter high

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  


Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne