1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Calculating the number of steps in an escalator

  1. Dec 9, 2005 #1
    There is a escalator and 12 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 stationary
  2. jcsd
  3. Dec 9, 2005 #2
    I think I am correct. Let x be the number of steps covered by A in the given time and let y be the steps escalator sailed. then
    x + y = 50
    3x + y = 75.
    Thus we will get the answer y as to be 37.5
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook