issb intelligence MCQ #383

Next number: 6, 11, 21, 36, 56, ?

issb intelligence MCQ #383

  1. Question 1

    Q1. Next number: 6, 11, 21, 36, 56, ?

    • A) 76
    • B) 81
    • C) 86
    • D) 91

    Answer: 81

    Explanation: Second differences constant add 5,10,15,20,25 gives 81. Work each step carefully; ISSB math rewards accuracy under time pressure.