Q14Short answer
A box contains two white, three black and four red balls. In how many ways can three balls be drawn from the box, if atleast one black ball is to be included in the draw. [Hint: Required number of ways = 3C1 × 6C2 + 3C2 × 6C2 + 3C3.]
A box contains two white, three black and four red balls. In how many ways can three balls be drawn from the box, if atleast one black ball is to be included in the draw. [Hint: Required number of ways = 3C1 × 6C2 + 3C2 × 6C2 + 3C3.]