Keystones — Lintel

Five GCSE retrieval questions · 2 September 2024 · mathsvault.uk/keystones

1. Number

What is 8 + 5.13 + 0.91?

Answer: 8 + 5.13 + 0.91 = 14.04
2. Algebra

Solve: ^x⁄₆ = 3.1666666666667

Answer: x = 19
3. Geometry

Adjacent = 30cm, hypotenuse = 50cm. Find the angle

Answer: 53.1°
4. Ratio

Simplify: 24:12:16

Answer: 6:3:4
5. Statistics

A bag has 7 red and 4 blue balls. What is the probability of picking a red ball?

Answer: ⁷⁄₁₁

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