Keystones — Lintel

Five GCSE retrieval questions · 21 October 2024 · 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⁄₆ = 3.6666666666667

Answer: x = 22
3. Geometry

Find the perimeter: hypotenuse = 21cm, one side = 10cm

Answer: 49.5cm
4. Ratio

Calculate 42.6% of 341

Answer: 145.27
5. Statistics

Calculate the mean of: 40, 30, 43, 7, 6, 20, 45

Answer: 27.3

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