Keystones — Lintel

Five GCSE retrieval questions · 8 May 2023 · mathsvault.uk/keystones

1. Number

The sum of three consecutive numbers is 144. What are the numbers?

Answer: 47, 48, and 49
2. Algebra

Solve: ^x⁄₈ = 3

Answer: x = 24
3. Geometry

Opposite = 19cm, adjacent = 16cm. Calculate the angle

Answer: 49.9°
4. Ratio

Simplify: 15:12:12

Answer: 5:4:4
5. Statistics

Calculate the mean of: 33, 6, 7, 29, 6, 42

Answer: 20.5

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