Question

If a ball is drawn st ramdom from box containing 6 red 4 blue 5 white balls what is probably that ball drawn is red or blue

Answer 1

Total number of balls 6+4+5=15
Out of 15 balls 1 ball can be drawn in C(15,1) ways
We want either red or blue ball
So 10 balls are favourable.
Out of 10 one ball can be drawn in C(10,1)ways.
Probability of success =C(10,1)/C(15,1)=10/15=2/3

Answer 2

ANSWER:-

2/3

STEP BY STEP SOLUTIONS:-

RED :-6

BLUE:-4

WHITE:-5

TOTAL :- 15

BLUE OR RED :-10/15

:- 2/3

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