Keystones — Capstone
Five GCSE retrieval questions · 7 February 2022 · 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
Solve: x⁄8 = 3.25
Answer: x = 26 -
3. Geometry
Adjacent = 19cm, hypotenuse = 32cm. Find the angle
Answer: 53.6° -
4. Ratio
Calculate 36.6% of 447
Answer: 163.6 -
5. Statistics
The mean of 6 numbers is 27. If 5 of them are 45, 15, 41, 38, 35, what is the missing number?
Answer: -12