issb mathematics MCQ #288

Half distance at 40, half at 60. Average:

issb mathematics MCQ #288

  1. Question 1

    Q1. Half distance at 40, half at 60. Average:

    • A) 48
    • B) 50
    • C) 52
    • D) 54

    Answer: 48

    Explanation: Equal distances: average is 2ab/(a+b) = 2*40*60/100 = 48 km/h. Work each step carefully; ISSB math rewards accuracy under time pressure.