Keystones — Capstone
Five GCSE retrieval questions · 23 May 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⁄7 = 3.2857142857143
Answer: x = 23 -
3. Geometry
Adjacent = 16cm, hypotenuse = 28cm. Find the angle
Answer: 55.2° -
4. Ratio
Calculate 27.8% of 662
Answer: 184.04 -
5. Statistics
The mean of 5 numbers is 31. If 4 of them are 29, 34, 41, 45, what is the missing number?
Answer: 6