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 2020,
puzzles about surds, or a random puzzle.

Archive

Show me a random puzzle
 Most recent collections 

Advent calendar 2020

Advent calendar 2019

Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018


List of all puzzles

Tags

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

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2021