issb mathematics MCQ #201

Average of 10, 20, 30, 40 is:

issb mathematics MCQ #201

  1. Question 1

    Q1. Average of 10, 20, 30, 40 is:

    • A) 20
    • B) 25
    • C) 30
    • D) 35

    Answer: 25

    Explanation: Sum is 100 and count is 4. Average is 25. Work each step carefully; ISSB math rewards accuracy under time pressure.