A BOX CONTAINS 4RED,3BLUE AND 2WHITES BALLS,IN HOW MANY WAYS CAN WE SELECT 3BALLS SUCH THAT:
A. THEY ARE ALL DIFFERENT COLORB. THEY ARE ALL REDC. 2 ARE BLUE 1 IS WHITED. EXACTLY 2 ARE BLUEE. NONE IS WHITE
Hello, hany!
Take off your CAPS LOCK.
It's hard to read . . . and it's impolite to SHOUT.
A box contains 4 red, 3 blue and 2 white balls.
In how many ways can we select 3 balls such that:
A) They are all different colors.
B) They are all red.
C) Two are blue, one is white.
There are 3 Blues and 6 Others.D) Exactly two are blue.
There are 7 non-white balls.E) None is white.