Keystones — Lintel

Five GCSE retrieval questions · 27 August 2024 · mathsvault.uk/keystones

1. Number

The sum of three consecutive numbers is 120. What are the numbers?

Answer: 39, 40, and 41
2. Algebra

Solve: ^x⁄₂ = 18.5

Answer: x = 37
3. Geometry

Find c if a = 16cm and b = 13cm in a right triangle

Answer: 20.6cm
4. Ratio

Simplify: 6:12:6

Answer: 1:2:1
5. Statistics

Find the range of: 10, 10, -10, 48, 48

Answer: 58

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