Keystones — Capstone
Five GCSE retrieval questions · 29 May 2021 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 99. What are the numbers?
Answer: 32, 33, and 34 -
2. Algebra
Solve: x⁄4 = 2.75
Answer: x = 11 -
3. Geometry
Adjacent = 23cm, hypotenuse = 36cm. Find the angle
Answer: 50.3° -
4. Ratio
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics
The mean of 5 numbers is 30. If 4 of them are 16, 25, 36, 47, what is the missing number?
Answer: 26