Keystones — Lintel
Five GCSE retrieval questions · 12 November 2022 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 141. What are the numbers?
Answer: 46, 47, and 48 -
2. Algebra
Solve: 9x - 7 = 2x + 7
Answer: x = 2 -
3. Geometry
Calculate the hypotenuse when a = 6cm and b = 13cm
Answer: 14.32cm -
4. Ratio
Calculate 15.5% of 220
Answer: 34.1 -
5. Statistics
A spinner has 3 red, 3 blue and 4 green sections. Probability of landing on red?
Answer: 3⁄10