Keystones — Capstone
Five GCSE retrieval questions · 18 August 2024 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 144. What are the numbers?
Answer: 47, 48, and 49 -
2. Algebra
Simplify: 9x - 7x + 5y - y
Answer: 2x + 4y -
3. Geometry
Adjacent = 23cm, hypotenuse = 29cm. Find the angle
Answer: 37.5° -
4. Ratio
Calculate 43.8% of 580
Answer: 254.04 -
5. Statistics
The mean of 4 numbers is 22. If 3 of them are 38, 24, 15, what is the missing number?
Answer: 11