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Lintel Jan 1 - 7 25 questions
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Monday 13 December 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 105. What are the numbers?

    Answer: 34, 35, and 36
  2. 2. Algebra

    Solve: x2 = 20

    Answer: x = 40
  3. 3. Geometry

    Adjacent = 17cm, hypotenuse = 36cm. Find the angle

    Answer: 61.8°
  4. 4. Ratio

    Simplify the ratio 3m:300cm

    Answer: 1:100
  5. 5. Statistics

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

    Answer: 14

Tuesday 14 December 2021

Keystones #1 · 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: x3 = 9.3333333333333

    Answer: x = 28
  3. 3. Geometry

    Adjacent = 13cm, hypotenuse = 28cm. Find the angle

    Answer: 62.3°
  4. 4. Ratio

    Simplify: 8:20:24

    Answer: 2:5:6
  5. 5. Statistics

    Calculate the mean of: 21, 20, 6, 23, 36, 47

    Answer: 25.5

Wednesday 15 December 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    40000000

    Answer: 4 × 107
  2. 2. Algebra

    Solve: 9x = 63

    Answer: x = 7
  3. 3. Geometry

    Opposite = 8cm, adjacent = 9cm. Calculate the angle

    Answer: 41.6°
  4. 4. Ratio

    Find 22% of 211

    Answer: 46.42
  5. 5. Statistics

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

    Answer: 14

Thursday 16 December 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 997 + 593

    Answer: 1590
  2. 2. Algebra

    Solve: 6x = 24

    Answer: x = 4
  3. 3. Geometry

    Adjacent = 27cm, hypotenuse = 47cm. Find the angle

    Answer: 54.9°
  4. 4. Ratio

    Simplify: 16:12:24

    Answer: 4:3:6
  5. 5. Statistics

    A spinner has 5 red, 3 blue and 6 green sections. Probability of landing on red?

    Answer: 514

Friday 17 December 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 977 + 592

    Answer: 977 + 592 = 1569
  2. 2. Algebra

    Solve: x8 = 2.75

    Answer: x = 22
  3. 3. Geometry

    Opposite = 12cm, adjacent = 20cm. Calculate the angle

    Answer: 31°
  4. 4. Ratio

    Find 71% of 457

    Answer: 324.47
  5. 5. Statistics

    Calculate the mean of: 37, 30, 30, 48, 25, 40, 10, 8

    Answer: 28.5