Sunday Times Teaser 2793 – Sum Triangles
by Victor Bryant
In this picture:
there are ten upward-pointing triangles of all sizes.
In a similar picture with many more rows, the total number of upward-pointing triangles is divisible by all the digits from 1 to 9.
In this larger picture the number of upward-pointing triangles in the bottom row is equal to Trix’s age.
How old is Trix?
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