## True and False with A Difference of Two Squares Dilemma

Question in Image Below         Solution 22) Fact   Perfect Squares can only have last digits 0,… Read More

5 years ago

## Sum of Digit of A where A is composed of Addends involving 9s Trick

SASMO Question in Image below     Solution   21) Notice that   9 = 10 - 1   99… Read More

5 years ago

KMC 2017 Cadet No. 30 Quadrilateral Area within a Parallelogram   Question and Solution are in Images below:… Read More

5 years ago

## Alphametic – Cryptarithm 3 x ABC is CCC

Solve: Alphametic - Cryptarithm 3 x ABC is CCC Question and Solution are in Images below:         Read More

5 years ago

## A Visit to the PMONK Math Olympiad

Please find some interesting selected PMONK Math Olympiad 2013 and 2015 Questions and their 'poorly handwritten' solutions (sorry) for your… Read More

5 years ago

## Hexagon four sides 120 degrees Equilateral Triangle Construction trick PMONK 2015 No. 27

Question 27 (PMONK 2015 – Level 6) All the Interior angles of a Hexagon are 120 degrees and four consecutive… Read More

5 years ago

## Three digit number when sum of five permutation given PMONK 2015 Level 6 No. 25

Question 25 (PMONK 2015 – Level 6) Given a three digit number abc. Its dgits are interchanged to form five… Read More

5 years ago

## Chinese Remainder Theorem to find the Last Five Digits of 15^2015 SASMO

Using the  Chinese Remainder Theorem to find the Last Five Digits of 15^2015 (SASMO Math Olympiad Problem) .   Question… Read More

5 years ago

## UK Math Trust Senior Question – When is the first time this sequence doesn’t have an integer term?

Question and Solution are in Images attached.                          … Read More

5 years ago

## Geometry Arc Circle Area – PUTNAM Problem A2 1998 – Trigonometry Identity Proof

Geometry Arc Circle Area I Found this Interesting Math Olympiad PUTNAM Problem and Its Solution (not mine) whilst browsing.  … Read More

5 years ago