Keystones — Capstone
Five GCSE retrieval questions · 26 October 2025 · mathsvault.uk/keystones
-
1. Number
The sum of three consecutive numbers is 147. What are the numbers?
Answer: 48, 49, and 50 -
2. Algebra
Solve: x⁄6 = 2.5
Answer: x = 15 -
3. Geometry
Adjacent = 13cm, hypotenuse = 23cm. Find the angle
Answer: 55.6° -
4. Ratio
Simplify the ratio 2m:200cm
Answer: 1:100 -
5. Statistics
The mean of 4 numbers is 34. If 3 of them are 50, 34, 31, what is the missing number?
Answer: 21