CARD MAGIC SQUARES.—solution

Arrange the cards as follows for the three new squares:—

3 2 4
4 3 2
2 4 3


6 5 7
7 6 5
5 7 6


9 8 10
10 9 8
8 10 9

Three aces and one ten are not used. The summations of the four squares are thus: 9, 15, 18, and 27—all different, as required.

 

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