mscroggs.co.uk
mscroggs.co.uk

subscribe

Puzzles

16 December

Arrange the digits 1-9 in a 3×3 square so that: the median number in the first row is 6; the median number in the second row is 3; the mean of the numbers in the third row is 4; the mean of the numbers in the second column is 7; the range of the numbers in the third column is 2, The 3-digit number in the first column is today's number.
median 6
median 3
mean 4
today's numbermean 7range 2

Show answer

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

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

Archive

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