Keystones — Lintel

Five GCSE retrieval questions · 31 May 2023 · mathsvault.uk/keystones

1. Number

What is ∛27?

Answer: 3
2. Algebra

Solve: ^x⁄₇ = 5.7142857142857

Answer: x = 40
3. Geometry

Adjacent = 30cm, hypotenuse = 45cm. Find the angle

Answer: 48.2°
4. Ratio

Simplify: 18:12:6

Answer: 3:2:1
5. Statistics

A spinner has 2 red, 3 blue and 4 green sections. Probability of landing on red?

Answer: ²⁄₉

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