Four Fours/11/Solutions/3
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Puzzle: Four Fours: $11$
Using exactly $4$ instances of the number $4$, the task is to write an expression for $11$, using whatever arithmetical operations you consider necessary.
Solution
- $11 = \dfrac {44} {\sqrt 4 + \sqrt 4}$
Sources
- 1964: L.H. Clarke: Fun with Figures ... (previous) ... (next): Solutions: $(46)$