Keystones — Capstone
Five GCSE retrieval questions · 4 January 2022 · 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⁄8 = 2.75
Answer: x = 22 -
3. Geometry
Adjacent = 20cm, hypotenuse = 26cm. Find the angle
Answer: 39.7° -
4. Ratio
Simplify the ratio 3m:300cm
Answer: 1:100 -
5. Statistics
The mean of 5 numbers is 30. If 4 of them are 40, 43, 40, 32, what is the missing number?
Answer: -5