issb mathematics MCQ #343

Next number: 5, 10, 20, 40, ?

issb mathematics MCQ #343

  1. Question 1

    Q1. Next number: 5, 10, 20, 40, ?

    • A) 60
    • B) 70
    • C) 80
    • D) 100

    Answer: 80

    Explanation: Each term doubles so next is 80. Work each step carefully; ISSB math rewards accuracy under time pressure.