Four Fours/Lemmata/Three Fours/60/Solutions/1
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Puzzle: Three Fours: $60$
Using exactly $3$ instances of the number $4$, the task is to write an expression for $60$, using whatever arithmetical operations you consider necessary.
Solution
- $60 = \dfrac {\paren {\sqrt 4 + \sqrt 4 }!} {.4}$