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`        It it takes one minute for a passenger standing on an escalator to reach the top if the escalator does not move it takes him 3mintue to walk up how long will it take for the passenger to arrive at the top if he walk  up the moving escalator`
11 months ago

Arun
22993 Points
```							Dear Vivek Let the distance to the top be d.therefore, the speed of the man with escalator not moving = (d/1) m/min.therefore the speed of the escalator with the man at rest = (d/3) m/minWhen both the man and the escalator are moving, effective speed= (d/3 + d) m/min =(4d/3)m/minTherefore time taken when both man and escalator are moving = distance / speed = d/(4d/3) min. = 3/4 min = 45 seconds RegardsArun (askIITians forum expert)
```
11 months ago
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### Course Features

• 110 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions