Keystones — Lintel
Five GCSE retrieval questions · 20 September 2024 · 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: 3x = 42
Answer: x = 14 -
3. Geometry
Adjacent = 19cm, hypotenuse = 25cm. Find the angle
Answer: 40.5° -
4. Ratio
Simplify: 20:16:24
Answer: 5:4:6 -
5. Statistics
A bag has 4 red and 5 blue balls. What is the probability of picking a red ball?
Answer: 4⁄9