At a metro station, a girl walks up a stationary escalator in time t₁.If she remains stationary on the escalator, then the escalator take her up in time t₂.The time taken by her to walk up on a moving escalator will be

Options

(a) (t₁+t₂)/2
(b) (t₁t₂)/(t₂-t₁)
(c) (t₁t₂)(t₂+t₁)
(d) (t₁-t₂)

Correct Answer:

(t₁t₂)(t₂+t₁)

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.