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Lintel · Grades 5–7 Keystones #1 23 May 2023
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Keystones — Lintel

Five GCSE retrieval questions · 23 May 2023 · mathsvault.uk/keystones

  1. 1. Number

    The sum of three consecutive numbers is 138. What are the numbers?

    Answer: 45, 46, and 47
  2. 2. Algebra

    Solve: x3 = 4.3333333333333

    Answer: x = 13
  3. 3. Geometry

    Adjacent = 18cm, hypotenuse = 32cm. Find the angle

    Answer: 55.8°
  4. 4. Ratio

    Calculate 33.4% of 887

    Answer: 296.26
  5. 5. Statistics

    A bag has 8 red and 4 blue balls. What is the probability of picking a red ball?

    Answer: 23