You may also like

problem icon

Balancing the Books

How many visitors does a tourist attraction need next week in order to break even?

problem icon

Grandpa's Rock Cakes

Weekly Problem 34 - 2012
Grandpa made a super-heavy rock cake. Five people have guessed the weight of the cake. Can you work out the weight of his cake?

problem icon

Marathon Mission

Weekly Problem 33 - 2012
Minnie trained more for the London Marathon this year, so her speed increased. By what percentage did her time decrease?

Kate's Date

Age 11 to 14 Short Challenge Level:


The mean mass of five giant dates was 50g.

Kate ate one, and the mean mass of the four remaining dates was 40g.

What was the mass of the date that Kate ate?


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