Keystones — Capstone
Five GCSE retrieval questions · 30 November 2021 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 117. What are the numbers?
Answer: 38, 39, and 40 -
2. Algebra
Solve: x⁄2 = 8.5
Answer: x = 17 -
3. Geometry
Adjacent = 12cm, hypotenuse = 20cm. Find the angle
Answer: 53.1° -
4. Ratio
Calculate 45.8% of 963
Answer: 441.05 -
5. Statistics
The mean of 4 numbers is 26. If 3 of them are 15, 45, 41, what is the missing number?
Answer: 3