Keystones — Capstone
Five GCSE retrieval questions · 18 April 2025 · mathsvault.uk/keystones
-
1. Number
The sum of three consecutive numbers is 99. What are the numbers?
Answer: 32, 33, and 34 -
2. Algebra
Solve: x⁄4 = 4.25
Answer: x = 17 -
3. Geometry
Adjacent = 20cm, hypotenuse = 30cm. Find the angle
Answer: 48.2° -
4. Ratio
Simplify the ratio 2m:200cm
Answer: 1:100 -
5. Statistics
The mean of 5 numbers is 36. If 4 of them are 30, 23, 42, 21, what is the missing number?
Answer: 64