Keystones — Lintel
Five GCSE retrieval questions · 14 July 2023 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 102. What are the numbers?
Answer: 33, 34, and 35 -
2. Algebra
Solve: x⁄4 = 6.25
Answer: x = 25 -
3. Geometry
Calculate the hypotenuse when a = 6cm and b = 12cm
Answer: 13.42cm -
4. Ratio
Calculate 45.9% of 523
Answer: 240.06 -
5. Statistics
A bag has 3 red and 7 blue balls. What is the probability of picking a red ball?
Answer: 3⁄10