Keystones — Capstone
Five GCSE retrieval questions · 15 October 2025 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 144. What are the numbers?
Answer: 47, 48, and 49 -
2. Algebra
Solve: x⁄5 = 6.4
Answer: x = 32 -
3. Geometry
Adjacent = 22cm, hypotenuse = 34cm. Find the angle
Answer: 49.7° -
4. Ratio
Calculate 24.4% of 686
Answer: 167.38 -
5. Statistics
A spinner has 6 red, 2 blue and 4 green sections. Probability of landing on red?
Answer: 1⁄2