Keystones — Capstone
Five GCSE retrieval questions · 5 January 2026 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 117. What are the numbers?
Answer: 38, 39, and 40 -
2. Algebra
Solve: x⁄6 = 6.1666666666667
Answer: x = 37 -
3. Geometry
Adjacent = 25cm, hypotenuse = 37cm. Find the angle
Answer: 47.5° -
4. Ratio
Simplify the ratio 5m:500cm
Answer: 1:100 -
5. Statistics
A spinner has 5 red, 2 blue and 4 green sections. Probability of landing on red?
Answer: 5⁄11