Keystones — Capstone
Five GCSE retrieval questions · 30 May 2024 · 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
Factorise fully: 12x² + 14x
Answer: 2x(6x + 7) -
3. Geometry
Adjacent = 24cm, hypotenuse = 42cm. Find the angle
Answer: 55.2° -
4. Ratio
Simplify the ratio 2m:200cm
Answer: 1:100 -
5. Statistics
The mean of 4 numbers is 33. If 3 of them are 26, 17, 46, what is the missing number?
Answer: 43