Keystones — Capstone
Five GCSE retrieval questions · 22 June 2025 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 138. What are the numbers?
Answer: 45, 46, and 47 -
2. Algebra
Solve: x⁄7 = 5.2857142857143
Answer: x = 37 -
3. Geometry
A right triangle has hypotenuse 17cm and one side 8cm. Find its area
Answer: 60cm² -
4. Ratio
Simplify the ratio 2m:200cm
Answer: 1:100 -
5. Statistics
A spinner has 3 red, 2 blue and 3 green sections. Probability of landing on red?
Answer: 3⁄8