issb mathematics MCQ #439

Average of 8 numbers is 15. Sum?

issb mathematics MCQ #439

  1. Question 1

    Q1. Average of 8 numbers is 15. Sum?

    • A) 100
    • B) 110
    • C) 120
    • D) 130

    Answer: 120

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