Four Fours/115/Solutions/1

From ProofWiki
Jump to navigation Jump to search

Puzzle: Four Fours: $115$

Using exactly $4$ instances of the number $4$, the task is to write an expression for $115$, using whatever arithmetical operations you consider necessary.


Solution

$115 = \paren {\dfrac {\sqrt 4} {.4} }! - \dfrac {\sqrt 4} {.4}$