Keystones — Lintel
Five GCSE retrieval questions · 2 April 2023 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 93. What are the numbers?
Answer: 30, 31, and 32 -
2. Algebra
Solve: x⁄2 = 13.5
Answer: x = 27 -
3. Geometry
Opposite = 17cm, adjacent = 16cm. Calculate the angle
Answer: 46.7° -
4. Ratio
Simplify: 12:6:9
Answer: 4:2:3 -
5. Statistics
A bag has 4 red and 4 blue balls. What is the probability of picking a red ball?
Answer: 1⁄2