Keystones — Capstone
Five GCSE retrieval questions · 10 August 2024 · 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
Simplify: 11x - 4x + 10y - 7y
Answer: 7x + 3y -
3. Geometry
Adjacent = 23cm, hypotenuse = 35cm. Find the angle
Answer: 48.9° -
4. Ratio
Calculate 39.6% of 416
Answer: 164.74 -
5. Statistics
The mean of 6 numbers is 25. If 5 of them are 23, 18, 45, 34, 40, what is the missing number?
Answer: -10