Keystones — Capstone
Five GCSE retrieval questions · 24 May 2025 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 123. What are the numbers?
Answer: 40, 41, and 42 -
2. Algebra
Solve: x⁄7 = 1.8571428571429
Answer: x = 13 -
3. Geometry
Adjacent = 30cm, hypotenuse = 49cm. Find the angle
Answer: 52.2° -
4. Ratio
Simplify the ratio 6m:600cm
Answer: 1:100 -
5. Statistics
A spinner has 6 red, 3 blue and 5 green sections. Probability of landing on red?
Answer: 3⁄7