mdcat logical reasoning MCQ #376

The series is: 1, 3, 6, 10, 15. What is the next number?

mdcat logical reasoning MCQ #376

  1. Question 1

    Q1. The series is: 1, 3, 6, 10, 15. What is the next number?

    • A) 20
    • B) 21
    • C) 22
    • D) 25

    Answer: 21

    Explanation: The pattern is formed by adding consecutive integers: +2, +3, +4, +5, +6. So, 15 + 6 = 21