Series: Subject: Topic:
Question: 37 of 77

Mr. Shah decided to walk down the escalator of a tube station. He found that if he walks down 26 steps, he requires 30 seconds to reach the bottom. However, if he steps down 34 stairs he would only require 18 seconds to get to the bottom. If the time is measured from the moment the top step begins to descend to the time he steps off the last step at the bottom, find out the height of the stair way in steps?

Asked by: cse_3rd | Member Since Oct-2007 | Asked on: Oct 28th, 2007

View all questions by cse_3rd

Showing Answers 1 - 2 of 2 Answers

Answered On : May 24th, 2008

View all answers by sarapriti

Let the speed of escalator be x steps/secthen total steps in escalator is  26 + 30x (since the escalator covers 30x steps while the person covers 26 steps)Similarly the in the second case the total no of steps is 34 + 18xsolving both ..  26 + 30x = 34 + 18x 12x = 8  , x = 2/3 therefore steps is 26 + 30*2/3 = 46 steps

Yes  1 User has rated as useful.
Login to rate this answer.

Answered On : Aug 25th, 2011


Login to rate this answer.

Give your answer:

If you think the above answer is not correct, Please select a reason and add your answer below.

Related Open Questions



twitter fb Linkedin GPlus RSS


Interview Question

 Ask Interview Question?


Latest Questions

Interview & Career Tips

Get invaluable Interview and Career Tips delivered directly to your inbox. Get your news alert set up today, Once you confirm your Email subscription, you will be able to download Job Inteview Questions Ebook . Please contact me if you there is any issue with the download.