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Capstone · Grades 7–9 Keystones #1 19 January 2023
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Keystones — Capstone

Five GCSE retrieval questions · 19 January 2023 · mathsvault.uk/keystones

  1. 1. Number

    The sum of three consecutive numbers is 144. What are the numbers?

    Answer: 47, 48, and 49
  2. 2. Algebra

    Solve: x⁄5 = 1.6

    Answer: x = 8
  3. 3. Geometry

    A right triangle has hypotenuse 17cm and one side 8cm. Find its area

    Answer: 60cm²
  4. 4. Ratio

    Calculate 17.1% of 662

    Answer: 113.2
  5. 5. Statistics

    A spinner has 3 red, 2 blue and 2 green sections. Probability of landing on red?

    Answer: 3⁄7

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