Keystones — Capstone
Five GCSE retrieval questions · 12 June 2022 · mathsvault.uk/keystones
-
1. Number
The sum of three consecutive numbers is 108. What are the numbers?
Answer: 35, 36, and 37 -
2. Algebra
Solve: x⁄4 = 2.5
Answer: x = 10 -
3. Geometry
Adjacent = 12cm, hypotenuse = 20cm. Find the angle
Answer: 53.1° -
4. Ratio
Calculate 27.8% of 615
Answer: 170.97 -
5. Statistics
The mean of 5 numbers is 31. If 4 of them are 32, 27, 22, 23, what is the missing number?
Answer: 51