Keystones — Capstone
Five GCSE retrieval questions · 27 January 2023 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 129. What are the numbers?
Answer: 42, 43, and 44 -
2. Algebra
Solve: x⁄5 = 5.4
Answer: x = 27 -
3. Geometry
Adjacent = 22cm, hypotenuse = 39cm. Find the angle
Answer: 55.7° -
4. Ratio
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics
The mean of 4 numbers is 36. If 3 of them are 17, 32, 15, what is the missing number?
Answer: 80