Keystones — Capstone
Five GCSE retrieval questions · 14 February 2025 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 150. What are the numbers?
Answer: 49, 50, and 51 -
2. Algebra
Find the next term: 1, 3, 7, 13, ...
Answer: 21 -
3. Geometry
Adjacent = 23cm, hypotenuse = 40cm. Find the angle
Answer: 54.9° -
4. Ratio
Simplify the ratio 7m:700cm
Answer: 1:100 -
5. Statistics
The mean of 6 numbers is 25. If 5 of them are 48, 29, 31, 24, 32, what is the missing number?
Answer: -14