Keystones — Capstone
Five GCSE retrieval questions · 6 June 2026 · mathsvault.uk/keystones
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1. Number
Simplify: y5 × y5 × y5
Answer: y15 -
2. Algebra
Solve: x⁄6 = 4.1666666666667
Answer: x = 25 -
3. Geometry
A right triangle has hypotenuse 10cm and one side 6cm. Find its area
Answer: 24cm² -
4. Ratio
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics
The mean of 6 numbers is 25. If 5 of them are 27, 50, 44, 34, 43, what is the missing number?
Answer: -48