Question

A bag contains 3 red and 5 black balls and a second bag contains 6 red
and 4 black balls. A ball is drawn from each bag. Find the probability
That both balls are red

Answer 1

hey the answer is ....

total number of red ball = 6 + 3 = 9

favourable outcomes = 3

probability = 3/9 = 1/3

Answer 2

Good question.

here is it's solution :-

since , we have to find probability that both balls are red,

so ,

we add all red balls (3+6)=9.

& total number of balls in both bags = (3+5+6+4) = 18

hence,

P(getting both red balls ) =
$\frac{9}{18} = \frac{1}{2}$

Hope it helps.
if any doubt ask me in comment section.

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