You may also like

problem icon

Seven Squares - Group-worthy Task

Choose a couple of the sequences. Try to picture how to make the next, and the next, and the next... Can you describe your reasoning?

problem icon

Pair Products Poster

Pair Products Poster - January 2007

problem icon


Every member of the club is a member of two committees. How many members are there in the club?

Dopey Measurement

Age 11 to 14 Short Challenge Level:

Snow White wanted to know the mean height of the Seven Dwarfs, so one day she measured them all as they left for work.

She calculated their mean height as 112.3 cm.

Doc complained that she had left him out and measured Dopey twice without him noticing.

If Doc is 3.5 cm taller than Dopey, what is the mean height of the Seven Dwarfs?


This problem is taken from the UKMT Mathematical Challenges.
You can find more short problems, arranged by curriculum topic, in our short problems collection.