Latest TCS Aptitude Question SOLUTION: An escalator is moving downwards. X takes 40 steps to reach bottom from top and Y takes 60 steps to reach top from bottom. The speeds of X and Y are equal. What is number of steps

• Placement Papers
• /
• TCS
• /
• Logical Reasoning
• /
• Mathematical Reasoning

TCS Question Papers: TCS Interview Experience(90) TCS Company Profile

(#M40025968) TCS Logical Reasoning question Keep an EYE

An escalator is moving downwards. X takes 40 steps to reach bottom from top and Y takes 60 steps to reach top from bottom. The speeds of X and Y are equal. What is number of steps on the escalator from bottom to the top?

Asked In TCS TargetTCS 2014 (10 years ago)

Unsolved Read Solution (7)

Is this Puzzle helpful?   (110)   (46) Submit Your Solution Mathematical Reasoning

Read Solution (7) :

PARAG KAMRA  (10 years ago)

X is moving with the escalator and Y is moving against the escalator and both having same speed.
assume escalator move from bottom to the top s steps total,so
X takes 40+s and Y takes 60-s
so, 40+s=60-s
2s=20=> s=10
number of steps on the escalator from bottom to the top is 50(ans)

Is this solution Helpfull? Yes (23) | No   

chandan kumar  (10 years ago)

ans is 50.

Is this solution Helpfull? Yes (7) | No   

shubh mehta  (10 years ago)

Let's our speed is 1step/min (convert steps into time) and total steps are s,
and escalqtor's speed is x. so for moving down s/1+x=40 and for up s/1-x = 60
s x=1/5 ,, putting it in any eq. we got s=48 ... so i think 48 is the ans.

Is this solution Helpfull? Yes (3) | No   

shiva shankar.s  (10 years ago)

i think its dummy question.
because we dont know the time.
so we cant equate these equation.

Is this solution Helpfull? Yes (2) | No (6)  

abhinav  (10 years ago)

10?? nt sure about it...explain

Is this solution Helpfull? Yes | No (3)  

sumitha  (10 years ago)

40 steps...As the steps from bottom to top is 40...

Is this solution Helpfull? Yes | No (4)  

Satyendra Yadav  (10 years ago)

suppose escalator has s no. of steps.
as it is moving downward...therefore as per concept of relativity
s-40=60-s ( since X is moving in same direction and Y in opposite to the escalator)
s=10
therefore 60-10= 50 no. of steps are there on escalator.

Is this solution Helpfull? Yes | No (1)  

Please Login to Read Solution.