Keystones — Capstone
Five GCSE retrieval questions · 9 October 2022 · 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⁄3 = 5
Answer: x = 15 -
3. Geometry
Find c if a = 19cm and b = 16cm in a right triangle
Answer: 24.8cm -
4. Ratio
Calculate 35.4% of 400
Answer: 141.6 -
5. Statistics
A spinner has 3 red, 3 blue and 6 green sections. Probability of landing on red?
Answer: 1⁄4