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Mathematical & Logical Puzzles -A7

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25.     Another Escalator Puzzle Let the number of visible steps be n and the little boy move up one step in unit time.   Therefore n - 50 s...

Mathematical & Logical Puzzles -Q7

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25. Another Escalator Puzzle             There are very long escalators in some New York subway stations.  You don’t have to climb them sinc...

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