issb mathematics MCQ #280

Average of 8 numbers is 15. Sum:

issb mathematics MCQ #280

  1. Question 1

    Q1. Average of 8 numbers is 15. Sum:

    • A) 100
    • B) 120
    • C) 130
    • D) 140

    Answer: 120

    Explanation: Sum equals average times count. 15 times 8 equals 120. Work each step carefully; ISSB math rewards accuracy under time pressure.