Three balls are drawn from a bag containing 5 red, 4 white and 3 black balls.

Question

Fill in the blanks:

Three balls are drawn from a bag containing 5 red, 4 white and 3 black balls. The number of ways in which this can be done if at least 2 are red is ______.

Answer 1

Formula:-

Given:-

Number of red=5

Number of white=4

Number of black=3

Required number of way=⁵C₂.⁷C₁+⁵C₃

=180.