Four Fours/125
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Puzzle
Using exactly $4$ instances of the number $4$, the task is to write an expression for $125$, using whatever arithmetical operations you consider necessary.
Solutions
Solution $1$
- $125 = \paren {\dfrac {\sqrt 4} {.4} }! + \dfrac {\sqrt 4} {.4}$
Solution $2$
- $125 = \paren {\dfrac {\sqrt 4} {.4} } \uparrow \sqrt {\dfrac {4} {.\dot 4} }$