Question

Einstein walks on an escalator at a rate of 5steps per second and reaches the other end in 10 sec. While coming back, walking at the same speed he reaches the starting point in 40secs. What is the number of steps on the escalator?

Answer 1

Answer:

while comminv back . walking at the same speed he reaches the starting pount in 40 secs . what is the number of steps on the escalator einstein walk on an escalator at a rate of 5 steps per second and reacges. the other end in 10 sec.

Answer 2

There are 80 steps on the escalator.

Explanation:

Let the rate of the escalator be x steps per second and the length of the escalator y steps. So,

$\dfrac{y}{x+5}=10$.........(1)

Similarly,

$\dfrac{y}{5-x}=40$.........(2)

Solving equation (1) and (2) we get :

y = 80

So, there are 80 steps on the escalator.

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