Keystones — Lintel
Five GCSE retrieval questions · 21 July 2021 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 150. What are the numbers?
Answer: 49, 50, and 51 -
2. Algebra
Simplify: 9x - 2x + 4y - 3y
Answer: 7x + y -
3. Geometry
Adjacent = 23cm, hypotenuse = 41cm. Find the angle
Answer: 55.9° -
4. Ratio
Simplify: 16:24:12
Answer: 4:6:3 -
5. Statistics
Calculate the mean of: 12, 35, 31, 19, 50, 33, 33, 15
Answer: 28.5