Four Fours/60
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Puzzle
Using exactly $4$ instances of the number $4$, the task is to write an expression for $60$, using whatever arithmetical operations you consider necessary.
Solutions
Solution $1$
- $60 = 4 \uparrow \sqrt {\dfrac 4 {. \dot 4} } - 4$
Solution $2$
- $60 = 4 \times 4 \times 4 - 4$
Solution $3$
- $60 = \dfrac {4! \times \sqrt 4} {.4 \times \sqrt 4}$
Solution $4$
- $60 = \dfrac {4!} {.4} + 4 - 4$