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 2019

Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018

Sunday Afternoon Maths LXVI

Cryptic crossnumber #2

List of all puzzles

Tags

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

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2020