issb mathematics MCQ #480

Average of 3, 7, 11, 15, 19, 23?

issb mathematics MCQ #480

  1. Question 1

    Q1. Average of 3, 7, 11, 15, 19, 23?

    • A) 12
    • B) 13
    • C) 14
    • D) 15

    Answer: 13

    Explanation: Sum 78 divided by 6 equals 13. Work each step carefully; ISSB math rewards accuracy under time pressure.