Four Fours/75
Jump to navigation
Jump to search
Puzzle
Using exactly $4$ instances of the number $4$, the task is to write an expression for $75$, using whatever arithmetical operations you consider necessary.
Solutions
Solution $1$
- $75 = \dfrac {4! + 4 + \sqrt 4} {.4}$
Solution $2$
- $75 = \dfrac {4! \times \sqrt 4 + \sqrt 4} {\sqrt {. \dot 4} }$
Solution $3$
- $75 = \dfrac {44} {. \dot 4} - 4!$