Keystones — Capstone
Five GCSE retrieval questions · 19 February 2026 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 93. What are the numbers?
Answer: 30, 31, and 32 -
2. Algebra
Solve: x⁄5 = 4.2
Answer: x = 21 -
3. Geometry
Adjacent = 21cm, hypotenuse = 38cm. Find the angle
Answer: 56.5° -
4. Ratio
Calculate 22.1% of 938
Answer: 207.3 -
5. Statistics
The mean of 4 numbers is 37. If 3 of them are 46, 34, 46, what is the missing number?
Answer: 22