engineering intelligence MCQ #1574

Complete the series: 1, 6, 15, 28, 45, ?

engineering intelligence MCQ #1574

  1. Question 1

    Q1. Complete the series: 1, 6, 15, 28, 45, ?

    • A) 66
    • B) 65
    • C) 67
    • D) 64

    Answer: 66

    Explanation: The series consists of numbers that increase by a growing difference: +5, +9, +13, +17, ... .