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#### Sunday Afternoon Maths LXVII

Coloured weightsNot Roman numerals

#### Advent calendar 2018

#### Sunday Afternoon Maths LXVI

Cryptic crossnumber #2#### Sunday Afternoon Maths LXV

Cryptic crossnumber #1Breaking Chocolate

Square and cube endings

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

## 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 \(X\)?

If you enjoyed these puzzles, check out Sunday Afternoon Maths LXVII,

puzzles about spheres, or a random puzzle.

puzzles about spheres, or a random puzzle.