Math, asked by wwwaishabhat516, 7 months ago

a box contains 3 red balls 7 black balls and 5 green balls .1 ball is drawn from the box at random .Find the probability of drawing a green ball, black or red ball ,ball that is not black

Answers

Answered by MirudhulaSR
2

Answer:

(P ) OF DRAWING A GREEN BALL :

5 /15 = 1÷3

P) OF DRAWING BLACK OR RED :

10 ÷15 = 2÷3

(P ) OF DRAWING A BALL THAT IS NOT BLACK :

8 ÷15

Answered by kaathshreya27
2

Answer:

total balls in the box = 15

probability of drawing green ball( because there are 5 green balls) = 5÷15

. =1/3

probability of drawing black or red ball

( 7 black and 3 red balls so 10 balls= 10÷15

= 2/3

probability of not getting black = 8÷15

( there are 7 balls so 15-7= 8) so = 8/15

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