Keystones — Capstone
Five GCSE retrieval questions · 18 September 2023 · 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
Simplify: 6x - 5x + 3y - y
Answer: x + 2y -
3. Geometry
Adjacent = 15cm, hypotenuse = 22cm. Find the angle
Answer: 47° -
4. Ratio
Calculate 27.8% of 666
Answer: 185.15 -
5. Statistics
The mean of 5 numbers is 37. If 4 of them are 27, 50, 45, 24, what is the missing number?
Answer: 39