Mr. shah decided to walk down the escalator of a tube station.He found that if he walks down 26 steps down 34 stairs he would only required 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?
a)45
b)46
c)49
d)none

• In 12 sec(30-18) he walks down 8(34-26) steps.
  therefore, (8*30)/12 =20 steps.
  So,the total height of the stair way in steps=(26+20)=46 steps
  
• 12 years agoHelpfull: Yes(17) No(3)
• I think data is incomplete.
• 12 years agoHelpfull: Yes(6) No(6)
• Let the speed of escalator be x steps/sec
  
  then 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
  + 18x
  
  solving both .. 26 + 30x = 34 + 18x
  
  12x = 8 , x = 2/3 therefore steps is 26 + 30*2/3 = 46 steps
• 10 years agoHelpfull: Yes(4) No(0)
• tis is nt prfect qustn
  sm data r missing
• 12 years agoHelpfull: Yes(3) No(3)
• .Ques is incomplete.. The correction is when he walks 26 steps down it takes 30 sec n when he walks 34 steps thn the time taken iz jus 18 sec.. Nw find the solution.. Gudluck.
• 12 years agoHelpfull: Yes(3) No(4)
• question is complete and the ans== 46. Madhuri is right..
• 11 years agoHelpfull: Yes(2) No(0)
• anna why u have equate both the equations plz explain
  
• 8 years agoHelpfull: Yes(0) No(0)