Keystones — Capstone
Five GCSE retrieval questions · 19 November 2021 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 135. What are the numbers?
Answer: 44, 45, and 46 -
2. Algebra
Solve: x⁄2 = 8.5
Answer: x = 17 -
3. Geometry
Adjacent = 29cm, hypotenuse = 34cm. Find the angle
Answer: 31.5° -
4. Ratio
Simplify the ratio 2m:200cm
Answer: 1:100 -
5. Statistics
The mean of 6 numbers is 28. If 5 of them are 23, 31, 50, 27, 26, what is the missing number?
Answer: 11