Keystones — Lintel
Five GCSE retrieval questions · 29 April 2021 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 108. What are the numbers?
Answer: 35, 36, and 37 -
2. Algebra
Solve: x⁄5 = 5
Answer: x = 25 -
3. Geometry
Calculate the area of a right triangle with perpendicular sides 7cm and 11cm
Answer: 38.5cm² -
4. Ratio
Find 27% of 323
Answer: 87.21 -
5. Statistics
A spinner has 4 red, 2 blue and 5 green sections. Probability of landing on red?
Answer: 4⁄11