Keystones — Capstone
Five GCSE retrieval questions · 5 January 2025 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 147. What are the numbers?
Answer: 48, 49, and 50 -
2. Algebra
Solve: x⁄2 = 9
Answer: x = 18 -
3. Geometry
Adjacent = 20cm, hypotenuse = 39cm. Find the angle
Answer: 59.1° -
4. Ratio
Calculate 44% of 598
Answer: 263.12 -
5. Statistics
The mean of 5 numbers is 38. If 4 of them are 18, 28, 18, 33, what is the missing number?
Answer: 93