The Challenge
How many squares are in the figure shown below?
The Correct Answer Forty (40). Click on any of these links for a detailed illustration of the solution:
PowerPoint show (.pps), suitable for computers with Microsoft Office
Movie (.mov), suitable for computers running Mac OS X
PDF sheet, suitable for all computers
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The Winners
The winners of this month's "Mental Gymnastics" challenge are:
- Richard Myers, Yarbrough Industries (Springfield, MO USA) (1st correct respondent)
- Daniel Suben, B. W. Rogers Company (Pittsburgh PA USA) (picked at random from all other correct respondents)
- Andrew Blashki, Victorian Hydraulics Pty Ltd (Moorabbin, Victoria Australia) (picked at random from all other correct respondents)
- Michelle King, Voto Manufacturers Sales Company (Steubenville, OH USA) (picked at random from all other correct respondents)
- Joseph Dvorak, Womack Machine Supply (Farmers Branch, TX USA) (picked at random from all other correct respondents)
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