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Lintel May 11 - 17 25 questions
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Monday 11 May 2026

Keystones #131 · Five questions · Open this day only

  1. 1. Number

    Multiply: 3⁄2 × 1⁄6 × 2⁄2

    Answer: 1⁄4
  2. 2. Algebra

    Solve: 7x - 5 > 4x + 1

    Answer: x > 2
  3. 3. Geometry

    A cyclist travels 109km in 6 hours. What is their average speed?

    Answer: 18.166666666667km/h
  4. 4. Ratio

    A and B share in ratio 2:1. If the difference is 69, what does A get?

    Answer: 138
  5. 5. Statistics

    A bag has 3 red and 5 blue balls. What is the probability of picking a red ball?

    Answer: 3⁄8

Tuesday 12 May 2026

Keystones #132 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄4 + 4⁄8

    Answer: 5⁄4
  2. 2. Algebra

    Solve: 9x - 4 > 7x + 16

    Answer: x > 10
  3. 3. Geometry

    How long does it take to travel 328km at 43km/h?

    Answer: 7.6 hours
  4. 4. Ratio

    A and B share in ratio 5:1. If the difference is 68, what does A get?

    Answer: 85
  5. 5. Statistics

    A bag has 8 red and 6 blue balls. What is the probability of picking a red ball?

    Answer: 4⁄7

Wednesday 13 May 2026

Keystones #133 · Five questions · Open this day only

  1. 1. Number

    Divide: 6 ÷ 2⁄2

    Answer: 6
  2. 2. Algebra

    Solve: 6x + 9 ≤ x - 10

    Answer: x ≤ 3.8
  3. 3. Geometry

    A cyclist travels 154km in 4 hours. What is their average speed?

    Answer: 38.5km/h
  4. 4. Ratio

    A and B share in ratio 7:1. If the difference is 216, what does A get?

    Answer: 252
  5. 5. Statistics

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

    Answer: 5⁄13

Thursday 14 May 2026

Keystones #134 · Five questions · Open this day only

  1. 1. Number

    Calculate: 11⁄14 - 2⁄14 - 3⁄14

    Answer: 3⁄7
  2. 2. Algebra

    Solve: 6x + 6 ≤ 5x - 9

    Answer: x ≤ 15
  3. 3. Geometry

    A cyclist travels 329km in 2 hours. What is their average speed?

    Answer: 164.5km/h
  4. 4. Ratio

    In ratio 3:1, the difference between shares is 156. What is the total?

    Answer: 312
  5. 5. Statistics

    A bag has 8 red and 7 blue balls. What is the probability of picking a red ball?

    Answer: 8⁄15

Friday 15 May 2026

Keystones #135 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄8 × 5

    Answer: 5⁄2
  2. 2. Algebra

    Solve: 7x - 9 > 2x + 16

    Answer: x > 5
  3. 3. Geometry

    How long does it take to travel 499km at 49km/h?

    Answer: 10.2 hours
  4. 4. Ratio

    In ratio 9:4, the difference between shares is 105. What is the total?

    Answer: 273
  5. 5. Statistics

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

    Answer: 2⁄5