A box contains two white balls, three black balls and four red balls. In how many ways can three balls be drawn from the box if at least one black ball is to be included in the draw [IIT 1986; DCE 1994]

A box contains two white balls, three black balls and four red balls.

1.	A box contains two white balls, three black balls and four red balls. In how many ways can three balls be drawn from the box if at least one black ball is to be included in the draw [IIT 1986; DCE 1994]
A.	64
B.	45
C.	46
D.	None of these
Answer» B. 45

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A box contains two white balls, three black balls and four red balls. In how many ways can three balls be drawn from the box if at least one black ball is to be included in the draw [IIT 1986; DCE 1994]

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