Keystones — Lintel

Five GCSE retrieval questions · 14 November 2023 · mathsvault.uk/keystones

1. Number

The sum of three consecutive numbers is 93. What are the numbers?

Answer: 30, 31, and 32
2. Algebra

Solve: ^x⁄₄ = 2.75

Answer: x = 11
3. Geometry

Adjacent = 18cm, hypotenuse = 27cm. Find the angle

Answer: 48.2°
4. Ratio

Simplify: 16:20:24

Answer: 4:5:6
5. Statistics

Find the range of: 1, -10, 32, -1, 32

Answer: 42

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