Question

A bag contains 4 red, 5 white and 6 black balls. What is the probability that two balls drawn are redand black?

Answer 1

$\huge\underline\mathfrak{Question\: Asked\: By\: You:-}$

bag contains 4 red 5 white 6 black balls what is the probability that two balls drawn are red and black ?

$\huge\underline\mathfrak{Answer\: Given\: By\: me:-}$

4 red+ 5white+ 6black = 15 .

$i) \: \: \: P(e) = \frac{number \: of \: favourable}{total \: number \: of \: outcome} \\ for \: red \: = > \: \frac{5}{15} = \frac{1}{3} \\ ii) \: \: \: P(e) \: = \frac{ number \: of \: favourable}{total \: number \: of \: outcome} \\ for \: black \: = > \: \frac{6}{15} = \frac{2}{5}$

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