Keystones — Capstone
Five GCSE retrieval questions · 25 September 2023 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 105. What are the numbers?
Answer: 34, 35, and 36 -
2. Algebra
Find the next term: 1, 2, 4, 7, ...
Answer: 11 -
3. Geometry
Adjacent = 20cm, hypotenuse = 33cm. Find the angle
Answer: 52.7° -
4. Ratio
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics
The mean of 6 numbers is 21. If 5 of them are 17, 23, 49, 24, 38, what is the missing number?
Answer: -25