Rob is on holiday in Paris, France. When Rob visited the Eiffel Tower today, he climbed 1000 stairs in 25 minutes. Tomorrow, Rob will climb 280 stairs at Montmartre.If he climbs at the same rate, how many minutes will it take Rob to climb the stairs tomorrow?

A man can walk up a moving "up" escalator in 30 seconds. The same man can walk down this moving "up" escalator in 90 seconds. Assume that his walking speed is same upwards and downwards. How much time will he take to walk up the escalator, when it is not moving?

Elaine takes 77 seconds to climb up a flight of 50 steps if she runs up 20 steps and walks up the rest of the way. She will take 98.5 seconds to climb the flight of 50 steps if she runs up 10 steps and walks the rest of the way. How long will Elaine take if she runs all the way up the 50 steps? (Assuming that Elaine’s running and walking speeds are constant.)

A person climbs up a stalled escalator in 60 s. If standingon the same but escalator running with constant velocityhe takes 40 s. How much time is taken by the person towalk up the moving escalator

Ely walks down to the bottom of an escalator that is moving up and he counts 150 steps. Her friend, Mia walks up to the top of the escalator and counts 75 steps. If Ely’s speed of walking (in steps per unit time) is three times Mia’s walking speed, how many steps are visible on the escalator at a given time? Assume that this value is constant

David walks his way to library every day. Generally, his speed is about 2.5 m/s but if he walks at speed of 3.5 m/s he will reach the library 5 minutes early. How far is the library from his home?