at 9 a.m. a man starts hiking a path up a Hill . he walks at a variable pace, resting occasionally, but never actually reversing his direction. at 9 p.m. he reaches the top. he camps out overnight. the next morning he wakes up at 9 a.m. and starts his descent down the Hill . again he walks down the path at a variable pace, resting occassionally, but always going downhill. at 9 p.m. he reaches the bottom. what is the probability that at some time during the second day, he is in the exact same spot he was in on the first day?

100% Probability...

Solution:

Imagine two hikers X and Y... X climbing up and Y climbing down... No matter in what pace they walk they will meet at some point because both take 12 hours to reach the destination...

Thanks
Manoj

Iam not able to understand what do u mean by " Exact same spot"? Because what "manjoks" told is bit obvious! Did u meant something else smartcoder?

if yes,Please specify it clearly!


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The same thing dear!!!