You can answer this riddle?
Why riddles? Their brains, as we will see stronger muscles with exercise. Here's your training …
There are two puzzles here. The first is the difficult question, but if the solution (or read) you think "it's easy to find." Difficult, but with a simple solution – this is the definition of an elegant puzzle. The second is one of those mysteries, the "tricks" you.
The weight of CD
Are you a manufacturer of blank CDs for childrenRecording studios. They arrive in the mail boxes with ten of them ready to close and send out, but you have a problem. Not all ten fields contain the CD itself. Nine of them contain a CD of music recordings, and is full of CDs, the recording of language are designed for a company that provides a pound-about CD. The problem is that they seem identical, and they forgot to label them.
However, there is a difference. Remember that weigh the "music" CD 13 grams, and because different"Blanks" used CDs, have been the "voice" CD weighs 15 grams I keep trying to see if you can stand to tell the difference, but it is not possible.
This is a scale in the post, but it costs dollars every time something weighed. You try to cut costs, so you want a minimum weighted possible.That is the mystery. Exactly how to use the scale as little as possible to determine which CD Box is the "voice"?
WeighingSilver
In this game, you have 15 silver ingots and a frying pan. A bar is slightly brighter than the others, and you can not understand the difference in feeling. The question is: what is the least number of times you can use the scale to determine which Silver Bar is a light?
Check-in solutions to the riddles
Believe it or not, the puzzle first, you can determine which box has the so called "voice" in them by the scale only once.Think for a moment, and probably figure this out.
The second riddle is a trick of the species. If one seems to be a silver strip on each side of the scale, you might get lucky and one of them will be easier. The minimum number of times you can find a balance in the light, then a period (Clock, formulation). The second part of the puzzle, then the least number of times you can use the scale that are guaranteed to find the easy identification of silverbar.
Why not use that intelligence now? These are not the most difficult puzzles.
