Keystones — Lintel
Five GCSE retrieval questions · 24 May 2021 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 123. What are the numbers?
Answer: 40, 41, and 42 -
2. Algebra
Solve: x⁄6 = 2.5
Answer: x = 15 -
3. Geometry
Opposite = 15cm, adjacent = 13cm. Calculate the angle
Answer: 49.1° -
4. Ratio
Simplify the ratio 6m:600cm
Answer: 1:100 -
5. Statistics
A bag has 8 red and 6 blue balls. What is the probability of picking a red ball?
Answer: 4⁄7