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
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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
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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