Keystones — Capstone
Five GCSE retrieval questions · 19 June 2023 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 138. What are the numbers?
Answer: 45, 46, and 47 -
2. Algebra
Solve: x⁄6 = 4.6666666666667
Answer: x = 28 -
3. Geometry
Adjacent = 15cm, hypotenuse = 35cm. Find the angle
Answer: 64.6° -
4. Ratio
Simplify the ratio 5m:500cm
Answer: 1:100 -
5. Statistics
The mean of 6 numbers is 23. If 5 of them are 44, 26, 29, 37, 31, what is the missing number?
Answer: -29