Keystones — Lintel
Five GCSE retrieval questions · 21 December 2024 · 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: 7x = 91
Answer: x = 13 -
3. Geometry
Opposite = 16cm, adjacent = 11cm. Calculate the angle
Answer: 55.5° -
4. Ratio
Simplify the ratio 3m:300cm
Answer: 1:100 -
5. Statistics
A bag has 3 red and 8 blue balls. What is the probability of picking a red ball?
Answer: 3⁄11