Keystones — Capstone
Five GCSE retrieval questions · 9 February 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⁄2 = 18.5
Answer: x = 37 -
3. Geometry
Adjacent = 13cm, hypotenuse = 25cm. Find the angle
Answer: 58.7° -
4. Ratio
Calculate 46.2% of 337
Answer: 155.69 -
5. Statistics
The mean of 5 numbers is 24. If 4 of them are 31, 18, 35, 25, what is the missing number?
Answer: 11