engineering mathematics MCQ #3977

How many 3-digit numbers can be formed using the digits 1, 2, 3, 4, 5 without repetition?

engineering mathematics MCQ #3977

  1. Question 1

    Q1. How many 3-digit numbers can be formed using the digits 1, 2, 3, 4, 5 without repetition?

    • A) 5P3
    • B) 5C3 * 3!
    • C) Both A and B
    • D) 5³

    Answer: Both A and B

    Explanation: Selecting 3 out of 5 digits and arranging them, so 5P3 = 5C3 * 3!.