mscroggs.co.uk
mscroggs.co.uk

subscribe

Puzzles

22 December

22 is two times an odd number. Today's number is the mean of all the answers on days (including today) that are two times an odd number.
Clarification: You are taking the mean for answers on days that are two times an odd numbers; ie. the days are two times odd, not the answers.

21 December

Today's number is a multiple of three. The average (mean) of all the answers that are multiples of three is a multiple of 193.
Tags: averages, mean

16 December

Today's number is four thirds of the average (mean) of the answers for 13th, 14th, 15th and 16th December.

Show answer

Mean, median, mode, range

A Find five one-digit positive integers which have a mean of 4, mode of 6, median of 4 and a range of 5.
B Find five one-digit positive integers which have a mean of 3, mode of 1, median of 1 and a range of 8.
C Find five one-digit positive integers which have a mean of 3, mode of 2, median of 2 and a range of 5.

Show answer & extension

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

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

Archive

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