issb mathematics MCQ #471

Average of 5, 10, 15, 20, 25, 30?

issb mathematics MCQ #471

  1. Question 1

    Q1. Average of 5, 10, 15, 20, 25, 30?

    • A) 15
    • B) 16
    • C) 17.5
    • D) 18

    Answer: 17.5

    Explanation: Sum 105 divided by 6 equals 17.5. Work each step carefully; ISSB math rewards accuracy under time pressure.