Keystones — Lintel
Five GCSE retrieval questions · 4 August 2023 · 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
What is the next term? 3, 12, 48, 192, ...
Answer: 768 -
3. Geometry
Calculate the area of a circle with diameter 20cm
Answer: 314.16cm² -
4. Ratio
Find 26% of 408
Answer: 106.08 -
5. Statistics
A bag has 3 red and 3 blue balls. What is the probability of picking a red ball?
Answer: 1⁄2