Keystones — Capstone
Five GCSE retrieval questions · 27 January 2026 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 120. What are the numbers?
Answer: 39, 40, and 41 -
2. Algebra
Solve: x⁄6 = 2.1666666666667
Answer: x = 13 -
3. Geometry
Adjacent = 22cm, hypotenuse = 31cm. Find the angle
Answer: 44.8° -
4. Ratio
Simplify the ratio 8m:800cm
Answer: 1:100 -
5. Statistics
A spinner has 3 red, 5 blue and 3 green sections. Probability of landing on red?
Answer: 3⁄11