Keystones — Capstone
Five GCSE retrieval questions · 31 March 2023 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 120. What are the numbers?
Answer: 39, 40, and 41 -
2. Algebra
Find the next term: 1, 3, 7, 13, ...
Answer: 21 -
3. Geometry
Adjacent = 24cm, hypotenuse = 31cm. Find the angle
Answer: 39.3° -
4. Ratio
Calculate 22.4% of 911
Answer: 204.06 -
5. Statistics
The mean of 4 numbers is 30. If 3 of them are 15, 46, 39, what is the missing number?
Answer: 20