Weekly Problem 12 - 2012
The pie chart shows the different types of ice creams that were sold last Saturday. How many chocolate ice creams were sold?
Weekly Problem 31 - 2012
When Kate ate a giant date, the average weight of the dates decreased. What was the weight of the date that Kate ate?
Weekly Problem 32 - 2012
How many visitors does a tourist attraction need next week in order to break even?
Weekly Problem 52 - 2013
When a jewel worth £5000 is transferred from one box to another, the average value of the jewels in both boxes increases. What is the total value of all the jewels?
Weekly Problem 15 - 2009
Can you work out Ali's age based on the diagram?
Weekly Problem 23 - 2009
How does Snow White need to change her value for mean-dwarf-height after a mix-up?
Weekly Problem 26 - 2009
From the mean weight of five ballet dancers and the mean weight of ten rugby, what is the average weight of all fifteen people?
From the mean of 64 numbers, and the mean of the first 36 of these numbers, can you work out the mean of the last 28 numbers?
Weekly Problem 12 - 2010
Can Emily increase her average test score to more than $80$%? Find out how many more tests she must take to do so.
Weekly Problem 4 - 2016
What is the largest number Sophie can use to have 7 positive integers with a mean of 7?
Weekly Problem 16 - 2016
How many three digit numbers have the property that the middle digit is the mean of the other two digits?
Weekly Problem 45 - 2016
The ladybird five-a-side squad has six members. The average number of spots is 12. How many spots does the pine ladybird have?
Weekly Problem 36 - 2017
What value of x makes the mean of the first three numbers in this list equal to the mean of the other four?
Weekly Problem 15 - 2017
Helen has two stables. When she moved her prize pony from the second stable to the first, the average value of the horses in each stable increased by £10,000. What is the total value of all the ponies?