Tuesday, May 5, 2009
Manipulate four 7's using addition, subtraction, multiplication and division to reach 56.
Solution (Highlight): ((7/7)+7)*7 = (1+7) *7 = 8*7
Four 7's = 56 - Math Puzzle
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This blog will challenge the minds of the readers with new logic and mathematics puzzles coming out multiple times per week. Check back often to exercise your brain. Answers will usually be available shortly after posting. Sometimes an open-ended question will be left open for debate.
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2009
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May 2009
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- Light Bulbs - Logic Puzzle
- Journey - Logic Puzzle
- Red and Blue - Logic Puzzle
- Desert Race - Logic Puzzle
- Water Bucket - Math Puzzle
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- Four 7's = 56 - Math Puzzle
- The Tiger, The Goat and some Cabbage - Logic Puzzle
- Word Puzzles
- Marbles - Logic Puzzle
- A Doctor, A Lawyer, A Teacher - Logic Puzzle
- Gold Chain - Logic Puzzle
- Desert Crossing - Math Puzzle
- Hourglasses - Logic Puzzle
- Consecutive Integers - Math Puzzle
- 5 Digit Number - Logic Puzzle
- Cigars - Puzzle
- Poisoned Wine
- Half Full or Half Empty? - Logic Puzzle
- Unusual Paragraph
- Where's the father? - Math Puzzle
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- Polynomial - Math Puzzzle
- Cubes - Math Puzzle
- 1 Integer
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May 2009
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