Keystones — Lintel
Five GCSE retrieval questions · 8 November 2021 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 117. What are the numbers?
Answer: 38, 39, and 40 -
2. Algebra
Solve: 6x = 42
Answer: x = 7 -
3. Geometry
Adjacent = 17cm, hypotenuse = 28cm. Find the angle
Answer: 52.6° -
4. Ratio
Simplify: 20:12:8
Answer: 5:3:2 -
5. Statistics
A bag has 8 red and 6 blue balls. What is the probability of picking a red ball?
Answer: 4⁄7