Keystones — Capstone
Five GCSE retrieval questions · 31 July 2023 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 144. What are the numbers?
Answer: 47, 48, and 49 -
2. Algebra
Find the next term: 1, 3, 7, 13, ...
Answer: 21 -
3. Geometry
Find the distance between (-8, -4) and (5, 8)
Answer: 17.69 -
4. Ratio
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics
The mean of 4 numbers is 38. If 3 of them are 28, 38, 43, what is the missing number?
Answer: 43