Keystones — Lintel
Five GCSE retrieval questions · 7 October 2021 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 126. What are the numbers?
Answer: 41, 42, and 43 -
2. Algebra
Solve: x⁄3 = 13.333333333333
Answer: x = 40 -
3. Geometry
Find c if a = 18cm and b = 14cm in a right triangle
Answer: 22.8cm -
4. Ratio
Calculate 22.4% of 590
Answer: 132.16 -
5. Statistics
Calculate the mean of: 5, 18, 23, 18, 47, 29, 26
Answer: 23.7