Keystones — Capstone
Five GCSE retrieval questions · 26 August 2026
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1. Number
The sum of three consecutive numbers is 141. What are the numbers?
Answer: 46, 47, and 48 -
2. Algebra
Simplify: 9x - 5x + 4y - 2y
Answer: 4x + 2y -
3. Geometry
Adjacent = 27cm, hypotenuse = 43cm. Find the angle
Answer: 51.1° -
4. Ratio
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics
The mean of 4 numbers is 22. If 3 of them are 41, 19, 16, what is the missing number?
Answer: 12