issb mathematics MCQ #716

Next number: 1, 3, 7, 15, 31, ?

issb mathematics MCQ #716

  1. Question 1

    Q1. Next number: 1, 3, 7, 15, 31, ?

    • A) 55
    • B) 61
    • C) 63
    • D) 65

    Answer: 63

    Explanation: Pattern doubles and adds 1 so 31 times 2 plus 1 is 63.