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Search options not deleted user 90506

A puzzle that requires formal logical deduction to arrive at the solution. This suggests more than merely reasoning through clues to find an answer (you might want [situation] for that).

2 votes
1 answer
222 views

Find the value of '?' in 4x4 table of numbers [closed]

Solve for ? 50 15 10 60 45 31 5 87 40 22 42 ? 9 4 3 14
William's user avatar
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