- #1

rajeshmarndi

- 319

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## Homework Statement

A bag contains 4 black and 5 white balls from which 6 balls are drawn. Determine the number of ways in which at

least 3 black balls can be drawn.

The book has solved it as combination.

## Homework Equations

## The Attempt at a Solution

When we are drawing say black ball, isn't it the probability of getting 3 black balls at least?

Also will it be correct to number the black ball e.g B1, B2, B3 & B4, which I feel it to be of no sense.