issb mathematics MCQ #210

Average of five numbers is 20. Their sum is:

issb mathematics MCQ #210

  1. Question 1

    Q1. Average of five numbers is 20. Their sum is:

    • A) 80
    • B) 100
    • C) 120
    • D) 90

    Answer: 100

    Explanation: Sum equals average times count. 20 times 5 equals 100. Work each step carefully; ISSB math rewards accuracy under time pressure.