Keystones — Lintel
Five GCSE retrieval questions · 28 December 2022 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 132. What are the numbers?
Answer: 43, 44, and 45 -
2. Algebra
For y = x³ + 13, calculate y when x = 3
Answer: y = 40 -
3. Geometry
Adjacent = 18cm, hypotenuse = 36cm. Find the angle
Answer: 60° -
4. Ratio
Simplify: 8:10:8
Answer: 4:5:4 -
5. Statistics
A bag has 5 red and 7 blue balls. What is the probability of picking a red ball?
Answer: 5⁄12