Keystones — Lintel
Five GCSE retrieval questions · 11 June 2023 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 135. What are the numbers?
Answer: 44, 45, and 46 -
2. Algebra
Solve: x⁄2 = 5
Answer: x = 10 -
3. Geometry
Opposite = 10cm, adjacent = 20cm. Calculate the angle
Answer: 26.6° -
4. Ratio
Simplify the ratio 2m:200cm
Answer: 1:100 -
5. Statistics
A bag has 5 red and 5 blue balls. What is the probability of picking a red ball?
Answer: 1⁄2