issb mathematics MCQ #271

Average of 5, 15, 25 is:

issb mathematics MCQ #271

  1. Question 1

    Q1. Average of 5, 15, 25 is:

    • A) 10
    • B) 15
    • C) 20
    • D) 25

    Answer: 15

    Explanation: Sum is 45 and count is 3. Average is 15. Work each step carefully; ISSB math rewards accuracy under time pressure.