Keystones — Capstone
Five GCSE retrieval questions · 21 September 2021 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 129. What are the numbers?
Answer: 42, 43, and 44 -
2. Algebra
Solve: x⁄7 = 5.1428571428571
Answer: x = 36 -
3. Geometry
Adjacent = 20cm, hypotenuse = 31cm. Find the angle
Answer: 49.8° -
4. Ratio
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics
A spinner has 3 red, 4 blue and 6 green sections. Probability of landing on red?
Answer: 3⁄13