Keystones — Capstone
Five GCSE retrieval questions · 5 June 2025 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 90. What are the numbers?
Answer: 29, 30, and 31 -
2. Algebra
Solve: x⁄7 = 0.85714285714286
Answer: x = 6 -
3. Geometry
A right triangle has hypotenuse 10cm and one side 6cm. Find its area
Answer: 24cm² -
4. Ratio
Simplify the ratio 3m:300cm
Answer: 1:100 -
5. Statistics
A spinner has 2 red, 3 blue and 6 green sections. Probability of landing on red?
Answer: 2⁄11