engineering intelligence MCQ #78

A box contains 5 red, 4 blue, and 3 green marbles. What is the minimum number of marbles to be drawn to ensure at least 2 marbles of the same color?

engineering intelligence MCQ #78

  1. Question 1

    Q1. A box contains 5 red, 4 blue, and 3 green marbles. What is the minimum number of marbles to be drawn to ensure at least 2 marbles of the same color?

    • A) 4
    • B) 5
    • C) 6
    • D) 7

    Answer: 4

    Explanation: To guarantee 2 of the same color, consider the worst case: drawing different colors. The 4th draw must match one of the previous colors.