Keystones — Lintel
Five GCSE retrieval questions · 27 December 2022 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 117. What are the numbers?
Answer: 38, 39, and 40 -
2. Algebra
Solve: 5x = 75
Answer: x = 15 -
3. Geometry
Find the distance between (-6, -6) and (6, 6)
Answer: 16.97 -
4. Ratio
Simplify: 20:12:8
Answer: 5:3:2 -
5. Statistics
Calculate the mean of: 43, 44, 34, 36, 47, 14
Answer: 36.3