engineering intelligence MCQ #959

A box contains 3 red, 4 blue, and 5 green balls. What is the minimum number of balls you must draw to guarantee you have 2 balls of the same color?

engineering intelligence MCQ #959

  1. Question 1

    Q1. A box contains 3 red, 4 blue, and 5 green balls. What is the minimum number of balls you must draw to guarantee you have 2 balls of the same color?

    • A) 4
    • B) 5
    • C) 3
    • D) 6

    Answer: 4

    Explanation: To guarantee 2 balls of the same color, consider the worst-case scenario: you draw one of each color first (3 draws). The next draw (4th) must result in a ball that matches one of the previously drawn colors.