Keystones — Lintel
Five GCSE retrieval questions · 26 May 2023 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 111. What are the numbers?
Answer: 36, 37, and 38 -
2. Algebra
Solve: 8x = 104
Answer: x = 13 -
3. Geometry
Adjacent = 22cm, hypotenuse = 41cm. Find the angle
Answer: 57.5° -
4. Ratio
Simplify: 16:8:12
Answer: 4:2:3 -
5. Statistics
A bag has 5 red and 8 blue balls. What is the probability of picking a red ball?
Answer: 5⁄13