Monday, 29 October 2007

Puzzles of Joy!

We were given a question in a lecture today. It wasn't actually the focus of the lecture (it was being used to demonstrate a theory of problem-solving) but I solved it! This is very exciting because I am most commonly rubbish at this kind of puzzle...

There are 3 containers. Container A has a capacity of 8 litres, B has a capacity of 5 litres and C a capacity of 4 litres. Container A is filled with water. How do you pour the water to finish with 4 litres in A and 4 litres in B?


1) Pour 5L from A->B4L5L0L
2) Pour 3L from B->C3L2L3L
3) Pour 3L from C->A6L2L0L
4) Pour 2L from B->C6L0L2L
4) Pour 5L from A->B1L5L2L
4) Pour 1L from B->C1L4L3L
4) Pour 3L from C->A4L4L2L

Apparently Alan did in 6 steps but perhaps that's a puzzle for another day.

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