Latest TCS Aptitude Question SOLUTION: 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

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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

Asked In TCS Nitish Kumar (12 years ago)

Unsolved Read Solution (7)

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Read Solution (7) :

madhuri  (12 years ago)

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

Is this solution Helpfull? Yes (17) | No (3)  

Dr.Dipin Singh  (12 years ago)

I think data is incomplete.

Is this solution Helpfull? Yes (6) | No (6)  

Anna  (10 years ago)

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

Is this solution Helpfull? Yes (4) | No   

vikas singh  (12 years ago)

tis is nt prfect qustn
sm data r missing

Is this solution Helpfull? Yes (3) | No (3)  

Ashish Mathur  (12 years ago)

.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.

Is this solution Helpfull? Yes (3) | No (4)  

Deepak Kumar Chetwani  (11 years ago)

question is complete and the ans== 46. Madhuri is right..

Is this solution Helpfull? Yes (2) | No   

tani  (8 years ago)

anna why u have equate both the equations plz explain

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