Puzzles/Arithmetical puzzles/Logarithms Puzzle

From Wikibooks, open books for an open world
< Puzzles‎ | Arithmetical puzzles
Jump to: navigation, search

Puzzles | Arithmetical puzzles | Logarithms Puzzle


Task is using any arithmetical operators, and school functions, such as logarithms, trigonometrical functions, square roots, and set of digits, get a specific digit.


Example[edit]

{1111111 \over 10000}

That means using "1" seven times write 10000, and the solution is:

\,10000={(111-11)}^{1+1}


Logarithms Puzzle 1[edit]

{777 \over 121}


Logarithms Puzzle 1 Solution


Logarithms Puzzle 2[edit]

{11 \over 32}


Logarithms Puzzle 2 Solution


Logarithms Puzzle 3[edit]

{111 \over 10001}


Since it may be difficult to solve, try solving these first:


{11111 \over 10001}


{1111 \over 10001}


Logarithms Puzzle 3 Solution