Keystones — Lintel
Five GCSE retrieval questions · 13 March 2022 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 120. What are the numbers?
Answer: 39, 40, and 41 -
2. Algebra
Solve: 2x = 20
Answer: x = 10 -
3. Geometry
Find the distance between (-2, -8) and (6, 11)
Answer: 20.62 -
4. Ratio
Simplify the ratio 7m:700cm
Answer: 1:100 -
5. Statistics
Calculate the mean of: 8, 15, 29, 41, 21, 20, 18, 24
Answer: 22