Keystones — Capstone
Five GCSE retrieval questions · 12 August 2025 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 102. What are the numbers?
Answer: 33, 34, and 35 -
2. Algebra
Solve: x⁄4 = 4.75
Answer: x = 19 -
3. Geometry
Adjacent = 16cm, hypotenuse = 25cm. Find the angle
Answer: 50.2° -
4. Ratio
Simplify the ratio 5m:500cm
Answer: 1:100 -
5. Statistics
The mean of 6 numbers is 40. If 5 of them are 17, 43, 25, 38, 23, what is the missing number?
Answer: 94