Keystones — Capstone
Five GCSE retrieval questions · 30 May 2023 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 138. What are the numbers?
Answer: 45, 46, and 47 -
2. Algebra
Solve: x⁄8 = 3
Answer: x = 24 -
3. Geometry
Adjacent = 28cm, hypotenuse = 37cm. Find the angle
Answer: 40.8° -
4. Ratio
Simplify the ratio 2m:200cm
Answer: 1:100 -
5. Statistics
The mean of 4 numbers is 21. If 3 of them are 20, 41, 41, what is the missing number?
Answer: -18