Keystones — Lintel
Five GCSE retrieval questions · 14 August 2025 · mathsvault.uk/keystones
-
1. Number
The sum of three consecutive numbers is 90. What are the numbers?
Answer: 29, 30, and 31 -
2. Algebra
Solve: 4x = 56
Answer: x = 14 -
3. Geometry
Opposite = 17cm, adjacent = 9cm. Calculate the angle
Answer: 62.1° -
4. Ratio
Simplify the ratio 8m:800cm
Answer: 1:100 -
5. Statistics
A bag has 4 red and 6 blue balls. What is the probability of picking a red ball?
Answer: 2⁄5