[Webinar] Streamline your web hosting managementRegister Today

x
?
Solved

ESCALATOR PROBLEM

Posted on 2006-06-16
5
Medium Priority
?
1,005 Views
Last Modified: 2008-03-03
There is a escalator and 2 persons move down it.A takes 50 steps and B takes 75 steps while the escalator is moving down.Given that the time taken by A to take 1 step is equal to time taken by B to take 3 steps.Find the no. of steps in the escalator while it is staionary

0
Comment
Question by:sinha_anshul26
  • 3
5 Comments
 
LVL 37

Assisted Solution

by:Harisha M G
Harisha M G earned 80 total points
ID: 16922512
0
 

Author Comment

by:sinha_anshul26
ID: 16925250
i know but i need sol to this one
0
 
LVL 21

Accepted Solution

by:
alainbryden earned 1920 total points
ID: 16926096
This is easy after solving the other one.

Let the number of steps = x.
No of steps rolled in by the escalator when A is walking down = x - 50. similarly for B is  x - 75
By the time A walked 1 step, the number of steps removed by the escalator = (x - 50)/50
By the time B walked 3 step, the number of steps removed by the escalator = 3(x - 75)/75
(x - 50)/50  =  3(x - 75)/75
(x - 50)*75 =  3(x - 75)*50
75x - 3750  = 150x - 11520
       75x     =    7500
            x = 100

Q.E.D.
0
 

Author Comment

by:sinha_anshul26
ID: 16926279
Hi Alain, Thanks for your quick help,
however I am not able to understand logic of these two equations....

By the time A walked 1 step, the number of steps removed
by the escalator = (x - 50)/50
By the time B walked 3 step, the number of steps removed
by the escalator = 3(x - 75)/75
0
 

Author Comment

by:sinha_anshul26
ID: 16926353
ok, it clear now...
Thaks Alain alot.
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Check out the easy way to Export Thunderbird to MS Outlook. It can be done effectively by using manual method and if you are not much into coding then you can definitely try the third party tool for the conversion.
A recent study by Google illustrates that almost 84% of patients go for both online and offline sources for hospital research. What do you think, “Is the Healthcare Industry the next to be disrupted by Digital Marketing?”
With just a little bit of  SQL and VBA, many doors open to cool things like synchronize a list box to display data relevant to other information on a form.  If you have never written code or looked at an SQL statement before, no problem! ...  give i…
This video tutorial shows you the steps to go through to set up what I believe to be the best email app on the android platform to read Exchange mail.  Get the app on your phone: The first step is to make sure you have the Samsung Email app on your …

612 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question