Keystones — Lintel

Five GCSE retrieval questions · 11 May 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⁄₅ = 2.6

Answer: x = 13
3. Geometry

Adjacent = 12cm, hypotenuse = 24cm. Find the angle

Answer: 60°
4. Ratio

Simplify: 9:15:15

Answer: 3:5:5
5. Statistics

Calculate the mean of: 43, 25, 16, 19, 39, 30, 48

Answer: 31.4

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