Contemporary Brainteasers - Dover Math Games & Puzzles | Fun Educational Puzzles for Adults & Kids | Perfect for Family Game Nights & Classroom Activities
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Description
How many cards do I have to deal before I know for certain that you have a straight?If two typists can type two pages in two minutes, how many typists will it take to type 18 pages? How many days are in five million seconds? If you think these are good questions, this is the book for you! Over two hundred entertaining puzzles involving mathematical and mechanical calculations include challenges to your lateral thinking and logical reasoning. When your brain's tired of being teased, you can consult the complete solutions.
Reviews
- Verified Buyer
These puzzles are straightforward and cover a wide range of subjects. I have not yet found any "trick" questions, although some are quite tricky. Several of them require a little knowledge of simple machines, which sent me looking for my HS physics book. (I enjoyed reviewing this material.) Some of the wording could be better, such as in Problems 8 and 21 where I thought the diagram was giving the areas of the squares, not the length of the sides as was intended. Otherwise, I am very much enjoying these great intermediate-level mind benders.
