In a bag of 36 balls, 30 are green, 2 are blue and rest are red. The probability that the second ball is red if the first one is blue is :
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Total balls = 36
Green balls = 30
Blue balls = 2
Red balls = 36 - ( 30 + 2 )
= 36 - 32 = 4
Now, after taking out one blue ball,
Balls left = 36 - 1 = 35
Now,
Total outcomes = 35
Favourable outcomes of getting a red ball = 4
P ( x ) = Favourable outcomes / total outcomes
P ( getting a red ball ) = 4 / 35
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Answer:
Step-by-step explanation:
there are 30 green balls , 2 blue balls and 4 red balls.
probability( 1 Blue followed by 1 red) = 2/36*4/35 = 1 / 210.
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