Keystones — Lintel
Five GCSE retrieval questions · 27 September 2021 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 114. What are the numbers?
Answer: 37, 38, and 39 -
2. Algebra
Solve: x⁄4 = 7.25
Answer: x = 29 -
3. Geometry
Opposite = 20cm, adjacent = 20cm. Calculate the angle
Answer: 45° -
4. Ratio
Simplify: 12:6:6
Answer: 2:1:1 -
5. Statistics
A bag has 6 red and 6 blue balls. What is the probability of picking a red ball?
Answer: 1⁄2