Keystones — Capstone
Five GCSE retrieval questions · 7 January 2022 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 150. What are the numbers?
Answer: 49, 50, and 51 -
2. Algebra
Solve: x⁄2 = 12.5
Answer: x = 25 -
3. Geometry
Adjacent = 16cm, hypotenuse = 34cm. Find the angle
Answer: 61.9° -
4. Ratio
Calculate 31.9% of 283
Answer: 90.28 -
5. Statistics
The mean of 6 numbers is 33. If 5 of them are 49, 20, 33, 27, 17, what is the missing number?
Answer: 52