BITSAT 2014 Paper

Let A = event of two socks being brown.
B = event of two socks being white.
Then P (A) =

5 ‌ C2

9 ‌ C2

=

4.3

9.8

=

3

18

Now, since A and B are mutually exclusive events, so required probability
= P (A) + P (B) =

5

18

+

3

18

=

4

9