Keystones — Lintel
Five GCSE retrieval questions · 10 February 2023 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 147. What are the numbers?
Answer: 48, 49, and 50 -
2. Algebra
Solve: x⁄7 = 4.4285714285714
Answer: x = 31 -
3. Geometry
Opposite = 13cm, adjacent = 19cm. Calculate the angle
Answer: 34.4° -
4. Ratio
Simplify: 6:12:4
Answer: 3:6:2 -
5. Statistics
A bag has 4 red and 5 blue balls. What is the probability of picking a red ball?
Answer: 4⁄9