By Karl Albrecht

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Additional info for Brain building: Easy games to develop your problem-solving skills

Example text

Here are the clues you need to deduce the name of the famous person. 1. " 2. Letters 3, 4, 5, and 6 are a part of the body. Thinking in Steps 23 3. Letters 1, 5, 6, and 7 are found on a bird. 4. Letters 8, 9, and 10 are a unit of measurement. What is the 10-letter name of this famous person? You probably found this exercise fairly easy. If you were careful to check what you were doing at each step, and you avoided the temptation to jump to conclusions, you probably wound up with the solution: Washington.

One mouse can eat one-third of the cheese in one-third of an hour. When they worked together, they ate two-thirds of it in one-third of an hour. In the second situation, it would take the two of them one-third of an hour to eat two-thirds of the cheese, and it would take the first one one-third of an hour to finish the remaining one-third of it. In either case, it takes them two-thirds of an hour to eat the cheese. Practice Problem 6-2 (Rephrasing): If only one of the statements is true, then any assumption about which boy took the pie that results in more than one true statement must be invalid.

There must be something special about that number because it gets added to every other number in the grid. Let's try some possibilities-suppose I put a 1 in the center. Would that work? )if I add it to 2 in some other box I only get 3, and there isn't any other number large enough to bring the total to 15. )2 is out for the same reason (stepping). Let's see, what about high numbers. If I put a 9 in the center spot and I put 8 in any other box, I've already overshot the total of 15 before I even add in the third number.