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Patrick Maher

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last 3 solved tasks
If c3535 - 355bc = abc1 find number abc. Multiple solutions may exist.
The aim is to place the some numbers from the list (19, 21, 22, 24, 28, 30, 65, 68, 74, 89) into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A*B-C.
Look at the series (17, 51, 204, 1020, 6120, ?), determine the pattern, and find the value of the next number!
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