Keystones — Capstone
Five GCSE retrieval questions · 7 October 2022 · 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⁄4 = 4.25
Answer: x = 17 -
3. Geometry
Adjacent = 20cm, hypotenuse = 25cm. Find the angle
Answer: 36.9° -
4. Ratio
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics
The mean of 5 numbers is 34. If 4 of them are 23, 26, 29, 19, what is the missing number?
Answer: 73