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 Sunday Afternoon Maths LXVII,
puzzles about calculus, or a random puzzle.

Archive

Show me a random puzzle
 Most recent collections 

Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018

Sunday Afternoon Maths LXVI

Cryptic crossnumber #2

Sunday Afternoon Maths LXV

Cryptic crossnumber #1
Breaking Chocolate
Square and cube endings

List of all puzzles

Tags

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

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2019