Keystones — Lintel
Five GCSE retrieval questions · 12 September 2024 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 135. What are the numbers?
Answer: 44, 45, and 46 -
2. Algebra
Solve: 8x = 120
Answer: x = 15 -
3. Geometry
A circle has area 452.4cm². Find its radius (dp)
Answer: 12cm -
4. Ratio
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics
Calculate the mean of: 17, 10, 18, 26, 22, 44, 25
Answer: 23.1