issb intelligence MCQ #650

Next number: 9, 19, 39, 79, 159, ?

issb intelligence MCQ #650

  1. Question 1

    Q1. Next number: 9, 19, 39, 79, 159, ?

    • A) 299
    • B) 309
    • C) 319
    • D) 329

    Answer: 319

    Explanation: Pattern doubles and adds 1 so 159 times 2 plus 1 is 319.