Videos Test Yourself Books MathFacts Math Diagnostics Math Tricks Daily PhysEd
Class Photos Worksheets Teen Math Musiclopedia Techlopedia Teacher Timesavers Study Guides

The Ribbon Problem

If we take the ribbon by the ends and pull it out straight, we have the number 0588235294117647. 
This number has the peculiarity that, if we multiply it by any one of the numbers, 2, 3, 4, 5, 7, 8, or 9, we get exactly the same number in the circle, starting from a different place. 
For example, multiply by 4, and the product 2352941176470588, which starts from the dart in the circle. 
So, if we multiply by 3, we get the same result starting from the star. 
Now, the puzzle is to place a different arrangement of figures on the ribbon that will produce similar results when so multiplied; only the 0 and the 7 appearing at the ends of the ribbon must not be removed.

See answer

Brain Teaser Of The Week