Keystones — Capstone
Five GCSE retrieval questions · 25 February 2023 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 114. What are the numbers?
Answer: 37, 38, and 39 -
2. Algebra
Factorise fully: 35x² + 20x
Answer: 5x(7x + 4) -
3. Geometry
Adjacent = 16cm, hypotenuse = 30cm. Find the angle
Answer: 57.8° -
4. Ratio
Simplify the ratio 5m:500cm
Answer: 1:100 -
5. Statistics
The mean of 6 numbers is 35. If 5 of them are 20, 30, 39, 28, 31, what is the missing number?
Answer: 62