Keystones — Lintel
Five GCSE retrieval questions · 16 July 2021 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 93. What are the numbers?
Answer: 30, 31, and 32 -
2. Algebra
Solve: 9x = 54
Answer: x = 6 -
3. Geometry
Find the distance between (-3, -1) and (11, 6)
Answer: 15.65 -
4. Ratio
Find 74% of 407
Answer: 301.18 -
5. Statistics
A bag has 4 red and 8 blue balls. What is the probability of picking a red ball?
Answer: 1⁄3