Keystones — Capstone
Five GCSE retrieval questions · 21 June 2022 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 150. What are the numbers?
Answer: 49, 50, and 51 -
2. Algebra
Solve: x⁄4 = 7.75
Answer: x = 31 -
3. Geometry
Adjacent = 22cm, hypotenuse = 33cm. Find the angle
Answer: 48.2° -
4. Ratio
Simplify the ratio 2m:200cm
Answer: 1:100 -
5. Statistics
The mean of 6 numbers is 36. If 5 of them are 40, 38, 17, 36, 43, what is the missing number?
Answer: 42