Keystones — Capstone
Five GCSE retrieval questions · 24 September 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
Solve: x⁄3 = 4.6666666666667
Answer: x = 14 -
3. Geometry
Adjacent = 29cm, hypotenuse = 45cm. Find the angle
Answer: 49.9° -
4. Ratio
Simplify the ratio 5m:500cm
Answer: 1:100 -
5. Statistics
A spinner has 2 red, 2 blue and 5 green sections. Probability of landing on red?
Answer: 2⁄9