Keystones — Lintel
Five GCSE retrieval questions · 28 June 2025 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 126. What are the numbers?
Answer: 41, 42, and 43 -
2. Algebra
Solve: 7x = 28
Answer: x = 4 -
3. Geometry
Adjacent = 28cm, hypotenuse = 40cm. Find the angle
Answer: 45.6° -
4. Ratio
Simplify the ratio 8m:800cm
Answer: 1:100 -
5. Statistics
A spinner has 5 red, 5 blue and 3 green sections. Probability of landing on red?
Answer: 5⁄13