Keystones — Capstone
Five GCSE retrieval questions · 5 September 2024 · mathsvault.uk/keystones
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1. Number
If x2 = 9, what is x?
Answer: 3 -
2. Algebra
Solve: x⁄3 = 12
Answer: x = 36 -
3. Geometry
Adjacent = 16cm, hypotenuse = 36cm. Find the angle
Answer: 63.6° -
4. Ratio
Calculate 49% of 564
Answer: 276.36 -
5. Statistics
The mean of 6 numbers is 37. If 5 of them are 22, 15, 45, 40, 27, what is the missing number?
Answer: 73