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Capstone Apr 23 - 29 25 questions
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Monday 20 April 2026

Keystones #110 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 132. What are the numbers?

    Answer: 43, 44, and 45
  2. 2. Algebra

    Factorise fully: 12x² + 12x

    Answer: 3x(4x + 4)
  3. 3. Geometry

    Adjacent = 15cm, hypotenuse = 29cm. Find the angle

    Answer: 58.9°
  4. 4. Ratio

    Calculate 33% of 225

    Answer: 74.25
  5. 5. Statistics

    A spinner has 5 red, 2 blue and 4 green sections. Probability of landing on red?

    Answer: 5⁄11

Tuesday 21 April 2026

Keystones #111 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 111. What are the numbers?

    Answer: 36, 37, and 38
  2. 2. Algebra

    Expand: 4(4x - 9)

    Answer: 16x - 36
  3. 3. Geometry

    Adjacent = 19cm, hypotenuse = 24cm. Find the angle

    Answer: 37.7°
  4. 4. Ratio

    Simplify the ratio 8m:800cm

    Answer: 1:100
  5. 5. Statistics

    A spinner has 2 red, 2 blue and 4 green sections. Probability of landing on red?

    Answer: 1⁄4

Wednesday 22 April 2026

Keystones #112 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 114. What are the numbers?

    Answer: 37, 38, and 39
  2. 2. Algebra

    Solve: x⁄6 = 3.1666666666667

    Answer: x = 19
  3. 3. Geometry

    Adjacent = 23cm, hypotenuse = 36cm. Find the angle

    Answer: 50.3°
  4. 4. Ratio

    Simplify the ratio 5m:500cm

    Answer: 1:100
  5. 5. Statistics

    A spinner has 4 red, 2 blue and 4 green sections. Probability of landing on red?

    Answer: 2⁄5

Thursday 23 April 2026

Keystones #113 · Five questions · Open this day only

  1. 1. Number

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

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

    Factorise fully: 25x² + 35x

    Answer: 5x(5x + 7)
  3. 3. Geometry

    Find c if a = 14cm and b = 22cm in a right triangle

    Answer: 26.cm
  4. 4. Ratio

    Simplify the ratio 5m:500cm

    Answer: 1:100
  5. 5. Statistics

    A spinner has 4 red, 6 blue and 2 green sections. Probability of landing on red?

    Answer: 1⁄3

Friday 24 April 2026

Keystones #114 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 141. What are the numbers?

    Answer: 46, 47, and 48
  2. 2. Algebra

    Factorise fully: 4x² + 6x

    Answer: 2x(2x + 3)
  3. 3. Geometry

    Adjacent = 15cm, hypotenuse = 25cm. Find the angle

    Answer: 53.1°
  4. 4. Ratio

    Simplify the ratio 6m:600cm

    Answer: 1:100
  5. 5. Statistics

    The mean of 5 numbers is 35. If 4 of them are 29, 34, 15, 19, what is the missing number?

    Answer: 78