You have to boil a single egg for exactly nine minutes.
All you have are two hourglasses, able to measure (in sand) seven and four minutes, respectively.
How quickly, using only these two hourglasses, can you boil an egg?
(In reply to
re: Solution: by G. Steve Arnold)
The 16 minute solution is viable, but not the shortest, and is therefore wrong. It would be the sortest solution if you were dealing with egg timers, or some other way of measuring time. However, because we have two hourglasses, we can achieve the desired result in a shorter time. See TomM's earlier post for the correct answer.
|
|
Posted by levik
on 2002-07-09 08:06:00 |
re(2): Solution:
