Keystones — Lintel
Five GCSE retrieval questions · 10 January 2025 · mathsvault.uk/keystones
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1. Number
Find the total of 118, 119, and 50
Answer: 287 -
2. Algebra
Solve: 2x = 6
Answer: x = 3 -
3. Geometry
Find c if a = 18cm and b = 21cm in a right triangle
Answer: 27.7cm -
4. Ratio
Simplify the ratio 3m:300cm
Answer: 1:100 -
5. Statistics
A bag has 3 red and 8 blue balls. What is the probability of picking a red ball?
Answer: 3⁄11