A has 5 balls.
3 are white and 2 are black.
In how many ways can he select 1 white and 1 black ball?
3 are white and 2 are black.
In how many ways can he select 1 white and 1 black ball?
This question needs A LOT of polishing before it could ever be considered GMAT-like. Some answer choices (5 to be exact) would be nice, as would some clarification regarding whether the same-colored balls are identical and whether the order of the selected balls matters.qwerty12321 wrote:A has 5 balls.
3 are white and 2 are black.
In how many ways can he select 1 white and 1 black ball?
If same-colored balls are identical and the order of the selected balls does matter, then there's only 1 way to select 1 white and 1 black ball.
Cheers,
Brent
