Keystones — Lintel
Five GCSE retrieval questions · 30 April 2023 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 123. What are the numbers?
Answer: 40, 41, and 42 -
2. Algebra
Solve: x⁄7 = 4.2857142857143
Answer: x = 30 -
3. Geometry
Opposite = 16cm, adjacent = 14cm. Calculate the angle
Answer: 48.8° -
4. Ratio
Calculate 16.1% of 255
Answer: 41.06 -
5. Statistics
Calculate the mean of: 8, 5, 10, 10, 6, 17, 42
Answer: 14