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Keerthana
Posted on

There are 3 red balls, 4 blue balls and 5 white balls. 2 balls are chosen randomly. Find probability that 1 is red and the other is white.

a

5/22

b

5/23

c

7/22

d

4/9

e

None of these

Answer : Option A
Explanation :

P=3c1×5c112c2=522{ m{P}} = frac{{3{c_1} imes 5{c_1}}}{{12{c_2}}} = frac{5}{{22}}

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