Keystones — Capstone
Five GCSE retrieval questions · 23 October 2021 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 123. What are the numbers?
Answer: 40, 41, and 42 -
2. Algebra
Solve: x⁄8 = 2.75
Answer: x = 22 -
3. Geometry
Adjacent = 28cm, hypotenuse = 40cm. Find the angle
Answer: 45.6° -
4. Ratio
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics
The mean of 5 numbers is 36. If 4 of them are 41, 49, 19, 50, what is the missing number?
Answer: 21