Keystones — Capstone
Five GCSE retrieval questions · 30 September 2023 · 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 = 6.5
Answer: x = 13 -
3. Geometry
Adjacent = 26cm, hypotenuse = 36cm. Find the angle
Answer: 43.8° -
4. Ratio
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics
The mean of 5 numbers is 33. If 4 of them are 43, 21, 28, 25, what is the missing number?
Answer: 48