Keystones — Capstone
Five GCSE retrieval questions · 16 June 2021 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 105. What are the numbers?
Answer: 34, 35, and 36 -
2. Algebra
Solve: x⁄6 = 6.5
Answer: x = 39 -
3. Geometry
Find the distance between (-7, -7) and (8, 12)
Answer: 24.21 -
4. Ratio
Simplify the ratio 3m:300cm
Answer: 1:100 -
5. Statistics
The mean of 6 numbers is 32. If 5 of them are 39, 50, 26, 39, 41, what is the missing number?
Answer: -3