issb mathematics MCQ #307

Average of 9, 11, 13, 15, 17:

issb mathematics MCQ #307

  1. Question 1

    Q1. Average of 9, 11, 13, 15, 17:

    • A) 11
    • B) 13
    • C) 15
    • D) 17

    Answer: 13

    Explanation: Sum is 65 and count is 5. Average is 13. Work each step carefully; ISSB math rewards accuracy under time pressure.