Keystones — Capstone
Five GCSE retrieval questions · 7 May 2021 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 102. What are the numbers?
Answer: 33, 34, and 35 -
2. Algebra
Solve: x⁄4 = 8
Answer: x = 32 -
3. Geometry
Find c if a = 11cm and b = 17cm in a right triangle
Answer: 20.2cm -
4. Ratio
Simplify the ratio 2m:200cm
Answer: 1:100 -
5. Statistics
A spinner has 4 red, 4 blue and 4 green sections. Probability of landing on red?
Answer: 1⁄3