mscroggs.co.uk
mscroggs.co.uk

subscribe

Sunday Afternoon Maths LXVII

 Posted on 2019-05-19 

Coloured weights

You have six weights. Two of them are red, two are blue, two are green. One weight of each colour is heavier than the other; the three heavy weights all weigh the same, and the three lighter weights also weigh the same.
Using a scale twice, can you split the weights into two sets by weight?

Show answer & extension

Not Roman numerals

The letters \(I\), \(V\) and \(X\) each represent a different digit from 1 to 9. If
$$VI\times X=VVV,$$
what are \(I\), \(V\) and \(X\)?

Show answer

If you enjoyed these puzzles, check out Advent calendar 2023,
puzzles about digits, or a random puzzle.

Archive

Show me a random puzzle
 Most recent collections 

Advent calendar 2023

Advent calendar 2022

Advent calendar 2021

Advent calendar 2020


List of all puzzles

Tags

scales triangles geometric means partitions probability perfect numbers numbers sum to infinity cryptic crossnumbers regular shapes mean tournaments factors angles folding tube maps chess geometric mean products multiples wordplay square roots chocolate ave pascal's triangle doubling addition differentiation shape digits integration coins hexagons graphs ellipses books dice lines pentagons decahedra spheres advent digital products perimeter quadratics cubics area percentages squares odd numbers shapes irreducible numbers albgebra polygons consecutive integers quadrilaterals taxicab geometry matrices integers square numbers unit fractions number multiplication logic median coordinates complex numbers geometry sums crossnumber 3d shapes games speed triangle numbers christmas trigonometry cube numbers surds fractions arrows cryptic clues crosswords sequences routes dodecagons elections circles parabolas sets calculus tangents factorials even numbers digital clocks crossnumbers symmetry consecutive numbers volume 2d shapes means combinatorics range expansions sport gerrymandering grids algebra people maths clocks proportion balancing bases functions menace determinants averages colouring indices the only crossnumber rectangles remainders division rugby probabilty axes star numbers tiling floors time dominos cards polynomials binary money palindromes planes prime numbers dates chalkdust crossnumber

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2024