Explanation Explanation Given: Time taken to walk from first (ground) to third floor is 30 seconds. Calculation: The flights of stairs between first floor and third floor is 2 from first floor to second floor, and from second floor to third floor. T h e t i m e t a k e n t o w a l k o n e f l i g h t o f s t a i r s = T i m e t a k e n t o w a l k f r o m g r o u n d f l o o r t o t h i r d f l o o r T h e f l i g h t s o f s t a i r s b e t w e e n g r o u n d a n d t h i r d f l o o r = 30 s e c o n d s 2 = 15 s e c o n d s T h e f l i g h t s o f s t a i r s b e t w e

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ISBN: 8220100802713

Author: Briggs

Publisher: PEARSON

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Chapter 2.C, Problem 20E

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The time taken to walk from the first (ground) floor of a building to the sixth floor.

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Chapter 2.C, Problem 19E

Chapter 2.C, Problem 21E

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