Keystones — Capstone
Five GCSE retrieval questions · 29 October 2024 · mathsvault.uk/keystones
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1. Number
Calculate: 2⁄5 + 2⁄6 + 5⁄6
Answer: 47⁄30 -
2. Algebra
Solve: x⁄3 = 8.3333333333333
Answer: x = 25 -
3. Geometry
A right triangle has hypotenuse 10cm and one side 6cm. Find its area
Answer: 24cm² -
4. Ratio
Calculate 14.5% of 373
Answer: 54.09 -
5. Statistics
The mean of 5 numbers is 39. If 4 of them are 47, 39, 48, 33, what is the missing number?
Answer: 28