Keystones — Capstone
Five GCSE retrieval questions · 17 December 2024 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 105. What are the numbers?
Answer: 34, 35, and 36 -
2. Algebra
Factorise fully: 25x² + 20x
Answer: 5x(5x + 4) -
3. Geometry
Adjacent = 19cm, hypotenuse = 32cm. Find the angle
Answer: 53.6° -
4. Ratio
Calculate 44.5% of 628
Answer: 279.46 -
5. Statistics
The mean of 5 numbers is 28. If 4 of them are 20, 19, 48, 18, what is the missing number?
Answer: 35