Keystones — Capstone
Five GCSE retrieval questions · 31 October 2024 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 96. What are the numbers?
Answer: 31, 32, and 33 -
2. Algebra
Solve: x⁄3 = 2.3333333333333
Answer: x = 7 -
3. Geometry
Find c if a = 8cm and b = 17cm in a right triangle
Answer: 18.8cm -
4. Ratio
Simplify the ratio 8m:800cm
Answer: 1:100 -
5. Statistics
The mean of 6 numbers is 30. If 5 of them are 15, 18, 40, 28, 31, what is the missing number?
Answer: 48