Math Puzzle: Lion in Circular Cage Puzzle

Re:Math Puzzle: Lion in Circular Cage Puzzle by finnw on Tuesday February 21, 2012 @06:53PM (#3618544)

I have seen a variant of this (but cannot remember where I saw it):

A duck is in the center of a circular lake. A fox is on the bank. The duck only needs to reach the bank (without simultaneously being caught by the fox) to win. The fox cannot swim.

If both move at the same speed, the fox wins easily. But what if the fox moves 4× as fast as the duck?

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Re:Math Puzzle: Lion in Circular Cage Puzzle by pratikpoddar on Wednesday February 22, 2012 @04:04AM (#3620075)

That is a different problem as the fox cannot enter the water body. Here both the tamer and the lion can go anywhere in the cage.

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Re:Math Puzzle: Lion in Circular Cage Puzzle by spenceyboi on Wednesday February 22, 2012 @02:06AM (#3619814)

I believe you meant to say that the duck wins easily if they both move at the same speed.

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Re:Math Puzzle: Lion in Circular Cage Puzzle by finnw on Wednesday February 22, 2012 @04:10AM (#3620086)

You're right, sorry (too late to edit)

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