Four Fours/35

From ProofWiki
Jump to navigation Jump to search

Puzzle

Using exactly $4$ instances of the number $4$, the task is to write an expression for $35$, using whatever arithmetical operations you consider necessary.


Solutions

Solution $1$

$35 = 4! + \dfrac {4 + .4} {.4}$

Solution $2$

$35 = 4! + \dfrac {4! - \sqrt 4} {\sqrt 4}$

Solution $3$

$35 = \dfrac {4 \times 4 - . \dot 4} {. \dot 4}$

Solution $4$

$35 = 44 - \dfrac 4 {. \dot 4}$


Also see

Previous  ... Next