Keystones — Capstone
Five GCSE retrieval questions · 8 May 2022 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 132. What are the numbers?
Answer: 43, 44, and 45 -
2. Algebra
Solve: x⁄8 = 3.125
Answer: x = 25 -
3. Geometry
A right triangle has hypotenuse 10cm and one side 6cm. Find its area
Answer: 24cm² -
4. Ratio
Calculate 26.6% of 434
Answer: 115.44 -
5. Statistics
The mean of 6 numbers is 21. If 5 of them are 26, 39, 35, 17, 28, what is the missing number?
Answer: -19