Keystones — Capstone
Five GCSE retrieval questions · 8 October 2024 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 141. What are the numbers?
Answer: 46, 47, and 48 -
2. Algebra
Expand: 7(3x - 11)
Answer: 21x - 77 -
3. Geometry
A right triangle has hypotenuse 13cm and one side 5cm. Find its area
Answer: 30cm² -
4. Ratio
Simplify the ratio 2m:200cm
Answer: 1:100 -
5. Statistics
The mean of 4 numbers is 37. If 3 of them are 45, 50, 35, what is the missing number?
Answer: 18