Keystones — Lintel
Five GCSE retrieval questions · 19 June 2023 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 150. What are the numbers?
Answer: 49, 50, and 51 -
2. Algebra
Solve: x⁄6 = 5
Answer: x = 30 -
3. Geometry
Opposite = 11cm, adjacent = 15cm. Calculate the angle
Answer: 36.3° -
4. Ratio
Simplify: 9:15:12
Answer: 3:5:4 -
5. Statistics
A spinner has 2 red, 3 blue and 3 green sections. Probability of landing on red?
Answer: 1⁄4